DESIRE: UNLEASH
pairing: enhypen!ot7 x reader genre: sci-fi au, dark romance, smut, enhanced alpha au, breeding kink, possessive yandere warnings: 18+ only, explicit smut, gangbang, dubcon, breeding kink, creampie, cum inflation, double/triple penetration, heat cycle sex, possessive behavior, marking, overstimulation, power imbalance word count: 12.7k (phew!) author's note: god i finally finished it đ this was such a wild, filthy ride and iâm honestly obsessed with how it turned out. thank you for reading and staying with dr. y/n and her seven feral alphas. we might return to this ff soon with a part 2⌠so if you want more (domestic life, future heats etc.) just let me know..thank you again for all the support!<3
Your name was Dr. Y/N, and you were one of the brightest rising stars in behavioral psychology, especially in the niche field of extreme neurological and genetic modification cases. At 24 years old, you had already consulted on several classified government projects with a bright smile, bubbly energy, and the kind of warm personality that made even the coldest subjects open up during sessions.
That last part was what made Helios Corporation reach out to you.
It started with a single encrypted email on a cold Monday morning in your quiet Seoul apartment.
âProject Aether â Confidential Invitation. We need the best. Compensation: 850 million KRW for the first six months. Full NDAs required.â
You almost deleted it. But curiosity and the staggering amount of money made you attend the initial meeting.
Two days later, you were sitting in a sleek black conference room thirty floors underground, surrounded by men in suits who never smiled. They laid out the project clearly:
Seven carefully selected young men. All volunteers. All in peak physical and mental condition. All willing to undergo progressive human enhancement for the sake of national defense.
Your job was simple on paper: Observe. Document. Stabilize. Keep them sane while their bodies and minds were rewritten.
The money was life-changing. The risks were high. You asked every hard question. You read every risk assessment. You knew this was dangerous.
Still⌠you signed the contract with a big smile.
Week 2.
Enhancements had not truly begun yet.
You walked into Observation Room 4 with a bounce in your step, wearing your crisp white lab coat over a soft pastel blouse, hair tied in a neat but cute bun with a little ribbon. Tablet in one hand, a bright smile already on your face.
Behind the reinforced glass, Subject 01 was waiting.
Heeseung sat leaning back lazily, legs spread, black uniform fitting him perfectly. His sharp eyes lifted and locked onto you the second you entered.
You pressed the intercom button and waved cheerfully.
"Hi there! I'm Dr. Y/N," you said with an enthusiastic lilt in your voice. "I'll be your psychologist throughout the project! It's so nice to finally meet you, Heeseung. How are you feeling today?"
Heeseung stared at you for a long moment, clearly surprised by your energy. The corner of his mouth slowly lifted.
"So... you're the one they sent to babysit us while we go crazy?" His deep voice sent a little shiver down your spine, but you kept smiling.
You laughed softly, tilting your head.
"Not babysit! I'm here to support you and make sure you're mentally okay during all the changes. We're in this together, okay? Think of me as your friendly guide through all the science stuff!"
Heeseung's eyes darkened with interest as he leaned closer to the glass.
"You're really young... and way too bubbly for a place like this," he murmured, voice low. "Do you smile this much for all your subjects, Doctor?"
You grinned and shrugged playfully.
"Only for the ones who look like they need it! Now, let's start with some easy questions. How have you been sleeping? Any worries about the upcoming procedures?"
Heeseung chuckled, the sound rich and deep.
"I sleep better knowing someone as cute as you is watching over me."
You met the others over the next three days, bringing the same warm energy to every session.
With Jay, who was sharp and a little skeptical, you leaned forward excitedly.
"Jay! I've read your files. You're super smart. I love working with intelligent people! Tell me, how are you really feeling about all these tests?"
Jay raised an eyebrow, but his lips twitched.
"You always this cheerful, Doctor? Or are you secretly terrified of us?"
"Terrified? No way!" you laughed. "I'm excited! This project could help so many people one day. And I want to make the journey easier for all of you."
Jake immediately matched your energy with a bright grin of his own.
"Wow, Doctor, you're like actual sunshine," he said warmly. "Can I call you Y/N instead of Dr. Y/N? It feels friendlier."
You giggled. "Only during casual talks! But yes, I like friendly."
Sunghoon was quiet at first, just staring intensely. You didn't let the silence bother you.
"Sunghoon~ You have such cool visuals! Are you uncomfortable? Do you need anything to feel more relaxed during our talks?"
He finally spoke, voice low. "...You're not scared of me."
"Nope!" you said brightly. "I think we're going to get along great."
Sunoo melted a little at your sweetness.
"Dr. Y/N, you're so kind," he said softly, smiling back at you. "You really care, don't you?"
"Of course I do! That's why I'm here," you replied happily.
Jungwon watched you with calm intensity but answered your questions politely.
"You have a lot of energy, Doctor."
"I do!" you beamed. "Gotta keep the mood light, right?"
And Ni-ki was the most forward.
"Damn, Doctor. You're actually cute as hell," he grinned, fangs not yet present but his energy already wild. "I like you. When can we meet without the glass?"
You laughed, waving your hand.
"Patience, Ni-ki! Professional boundaries first, okay? But I promise I'll always be honest with you."
By the end of the first week, you had detailed profiles on all seven, but you also felt genuinely fond of them already.
You kept telling yourself they were subjects... but it was hard when they were all so interesting.
As the enhancements began, you watched everything through the observation glass.
First came muscle and bone density treatments. Week after week their bodies changed â shoulders broadening, muscles growing sharper and stronger. You noted every mood swing and wrote detailed reports, but you still visited them with the same bright energy.
The therapy sessions slowly grew more charged.
One day Heeseung leaned close to the glass, eyes intense. "Do you have a boyfriend waiting for you outside, Doctor?"
You blushed but laughed. "Hey! That's private information, Mr. Heeseung! Focus on you, not me~"
Jake teased you every session. "One real smile without the professional mask, please? Your smiles make my day better, Y/N."
Sunghoon stared longer and longer. One day he said quietly, "You smell nice today." His voice had a new, darker edge.
You giggled nervously but answered, "Thank you! I changed my body wash. Glad you noticed."
Their stares started changing. What used to be curiosity slowly turned into something hungrier, darker, more possessive.
By Month Four the final hormonal cocktail was administered. This phase pushed their strength, recovery speed, and primal instincts into overdrive.
That was when everything cracked.
Violent incidents started. Handlers were injured. The boys became restless and aggressive with everyone except when they heard your voice over the speakers.
You would speak in your usual bright but firm tone, "Hey guys, it's Dr. Y/N. Can you please calm down for me? I know it's hard, but I'm right here, okay? Breathe with me."
Every time, all seven of them would stop and listen.
Month Five.
You were called into an emergency meeting. The Director and Dr. Elias Voss showed you the footage. All seven subjects were in reinforced cells, pacing like predators. Their bodies were now much larger and more powerful. Their eyes had a faint glow and their teeth looked slightly sharper.
"They have imprinted on you, Dr. Y/N," the Director said seriously. "You are the only compatible Anchor. Without regular close contact with you, their minds become unstable and feral."
You stared at the screens. Heeseung was looking straight at the camera like he could see you.
Dr. Voss added gently, "We need you to become their official Anchor. You would live with them in the final habitat level. Daily proximity. Physical contact when needed. Your body would also receive minor modifications for safety and endurance. Their breeding instincts are extremely high now. This will not stay clinical."
The room was silent as you thought.
You bit your lip, then lifted your chin with bold determination.
"If my presence can really help stabilize them⌠if I can make a real difference here⌠then I'll do it. I'll become their Anchor."
You signed the new contract with steady hands, even though your heart was racing.
Three weeks after signing, you woke up slowly on the medical bed. Your body felt sore and strangely sensitive. Thick restraints held your wrists and ankles. IV lines were still in your arms. Your head throbbed lightly.
Dr. Elias Voss entered and helped unclip the restraints.
"Welcome back, Dr. Y/N. The synchronization was successful. Your body has been adjusted to better handle their pheromones and physical strength."
He turned the large glass wall transparent.
Your breath caught.
On the other side stood all seven of them in a luxurious common area. They looked completely transformed â taller, broader, radiating raw power. Their black uniforms stretched tight over powerful muscles. Their eyes glowed with open, dark hunger as they stared at you.
Heeseung stepped forward and pressed his large hand against the glass. His voice came through the speakers, low and rough.
"Finally⌠Our bubbly little Anchor is awake."
Jake smiled, but the look in his eyes was pure lust. "You smell even sweeter now, Y/N."
Sunghoon dragged his gaze slowly down your body, dark and unashamed.
Sunoo tilted his head with a sweet smile that didn't hide the hunger. "We missed you so much, Doctor."
Jungwon watched you like a leader claiming his prize. "Welcome to your new home with us."
Ni-ki smirked, fangs clearly visible. "Been waiting too long to get my hands on you properly."
Dr. Voss spoke quietly beside you. "Individual sessions begin tomorrow. Try to keep them calm as long as you can."
Heeseung's eyes burned into yours, dark and full of promise.
"Come to us soon, sunshine. We've been starving for you⌠in every way."
Your heart pounded hard. You felt nervous, but you also felt that spark inside you. You were no longer just their doctor.
You were their Anchor now.
And something much deeper, much more primal, had officially begun.
Dr. Elias Voss gave you a few hours to rest and adjust before the first session began. You changed into a fresh white lab coat over a soft lavender blouse and simple black pants, tied your hair into your usual cute bun with the little ribbon, and took a deep breath.
"Alright," you whispered to yourself with a small smile. "You've got this, Y/N. They're still the same guys... mostly."
When the door to the habitat level opened, the scent of warm cedarwood, something sweet, and raw masculine energy hit you all at once. The luxurious common area was massive â soft lighting, large couches, a full kitchen area, and an open gym space in the corner. It looked more like an expensive penthouse than a facility.
All seven of them were waiting.
The moment you stepped inside, their heads turned in perfect sync. The air instantly felt thicker.
You put on your brightest professional smile and waved.
"Hi everyone~! Good morning! Or... afternoon? Iâm not sure what time it is anymore," you said with a soft laugh, trying to keep your voice light. "How are you all feeling today?"
Heeseung was the first to move. He walked straight toward you, slow and deliberate, until he was only a few steps away. Up close he looked even bigger than before. His shoulders were wider, his jaw sharper, and his eyes had a faint golden ring around the dark pupils.
"Sunshine," he said, voice low and rough. "You have no idea how good it feels to finally have you here without glass between us."
You tilted your head, still smiling even as your heart raced.
"Well, here I am! No more glass. But remember, we still have rules for the sessions. Iâm here to help keep you stable, okay?"
Jake appeared beside Heeseung, smiling brightly but with clear hunger in his eyes.
"You smell incredible," he murmured. "Even better than before. Did they change something in you?"
You giggled nervously and took a small step back, opening your tablet.
"Maybe a little! Just to help with compatibility. Now, who wants to go first for their individual session?"
All seven of them stared at you like they wanted to be first.
Dr. Vossâs voice came through the hidden speakers.
"Start with Heeseung, Dr. Y/N. One hour sessions. Weâll be monitoring.
You led Heeseung into the private session room attached to the habitat. It was comfortable â two couches facing each other, soft lighting, and a small table. No glass. No barrier.
Heeseung sat down, legs spread wide, arms resting on the back of the couch as he watched you. You sat across from him, crossing your legs and smiling.
"So! Letâs begin like usual. How have you been feeling since the last round of enhancements? Any mood swings, headaches, or aggressive thoughts?"
Heeseung didnât answer right away. His eyes slowly traveled from your ribbon down to your lips, then lower.
"I feel⌠hungry," he said finally. "All the time. Especially when I think about you."
You blinked but kept your bubbly tone.
"Hungry is pretty normal with the hormonal changes! We can work on ways to manage that. Maybe some meditation orâ"
"Do you know what I think about when Iâm hungry, Doctor?" he interrupted, leaning forward. His voice dropped. "I think about pulling you onto my lap and burying my face in your neck. I think about how soft youâd feel. How sweet youâd taste."
Your cheeks flushed pink. You laughed softly, trying to play it off while writing notes.
"Heeseung⌠thatâs very direct," you said, still smiling but with a slightly higher pitch. "Those kinds of thoughts are part of the new instincts. We should talk about healthier outlets."
Heeseung smirked, dark and slow.
"Youâre even cuter when you blush. Do you know how long weâve waited to be this close to you?"
The rest of the session continued like that â you trying your best to guide the conversation back to clinical topics while Heeseung kept steering it toward you. How you smelled, how your voice affected him, how he wanted to touch your hair.
When the hour ended, he stood up and gently brushed a stray strand of hair behind your ear before you could react. His fingers felt burning hot.
"Next time, I wonât be so polite, sunshine."
The next session was with Jake.
He was more playful but no less intense. The moment the door closed he moved closer on the couch, sitting only one seat away.
"Youâre nervous," he said with a warm smile. "Your heart is beating fast. I can hear it."
You giggled and lightly tapped your tablet.
"Jake! Personal space, remember? And stop showing off your new super hearing."
He laughed, but his eyes stayed locked on you.
"I missed your laugh. The way you bounce when you walk. The little ribbon in your hair. Did you wear it for us?"
You touched the ribbon self-consciously.
"Itâs just my usual style! Now tell me â any trouble controlling your strength lately?"
Jake reached out and gently took your hand, turning it over in his much larger one. His thumb stroked your wrist.
"My strength is fine. Itâs the other instincts that are hard to control," he said softly. "I keep imagining pinning you down and filling you up until you canât think straight. Until youâre carrying our scent."
Your breath hitched. You pulled your hand back gently but kept smiling.
"Jake⌠thatâs the breeding instinct talking. We need to work on redirecting those thoughts."
He just grinned wider. "I donât want to redirect them. I want you."
Sunghoonâs session was quieter but heavier.
He barely spoke for the first fifteen minutes, just staring at you with those icy yet burning eyes. When he finally talked, his voice was low.
"Come closer."
You shook your head with a playful smile. "We can talk just fine from here~"
"Youâre scared Iâll lose control?" he asked.
"No. I trust you to behave during sessions," you replied cheerfully, even though your pulse was racing.
Sunghoon leaned forward.
"I want to bite you. Right here," he touched his own neck. "And then lick it better. Over and over."
You swallowed but kept your tone light. "Biting is⌠a strong urge. We should add that to the list of things to manage."
By the time you finished the first four sessions (Heeseung, Jake, Sunghoon, and Sunoo who was sweetly terrifying with how gently he described wanting to ruin you), you were exhausted but still smiling.
Dr. Voss met you in the small monitoring room.
"Youâre doing well," he said. "Theyâre calmer than theyâve been in weeks. But their fixation is getting stronger. Tomorrow youâll do sessions with Jungwon and Ni-ki."
You nodded, cheeks still warm.
"Theyâre very⌠intense now."
Voss gave you a careful look. "Thatâs only the beginning, Doctor. Their need for you physically is only going to grow."
That night you slept in your own assigned room inside the habitat level. The door locked from the outside for âsafety.â
You lay in bed, heart still racing from all the things they had said to you during the day.
Through the wall, you could faintly hear low voices talking. Then a soft growl. Then Heeseungâs deep voice clearly saying.âSoon.â
You pulled the blanket higher, a strange mix of nervousness and warmth blooming in your chest.
This was going to be much harder than you thought.
The next morning you woke up feeling a little more refreshed but still flushed from yesterdayâs sessions. You chose a soft mint green blouse under your white lab coat today and tied your hair in your signature cute bun with the small white ribbon. Taking a deep breath, you stepped into the common area with your usual bright energy.
"Good morning, everyone!" you called out cheerfully, holding your tablet. "I hope you all slept well. Whoâs ready for todayâs sessions?"
All seven of them were already gathered. Their eyes followed your every movement the second you appeared. The hunger from yesterday had not faded. If anything, it looked stronger.
Jungwon was the first for the day.
You led him into the private session room and sat down with a warm smile.
"Hi Jungwon~ Letâs start like always. How are you feeling after all the changes? Any new urges or difficulties controlling them?"
Jungwon sat across from you, posture straight and composed even though his eyes were anything but calm. He looked at you quietly for a long moment before speaking.
"You look tired, Doctor," he said softly. "Did you have trouble sleeping because of us?"
You laughed lightly and waved your hand.
"A little bit! Itâs a new environment after all. But Iâm okay! Now tell me about you."
He leaned forward slightly, elbows on his knees.
"I keep thinking about you at night," he admitted, voice calm but heavy. "About how small you are compared to us now. How easily I could pick you up and put you wherever I want. How you would sound if I held you down and bred you full until you couldnât move."
Your pen stopped moving for a second. You felt heat rush to your face but forced yourself to keep smiling.
"Those thoughts are very strong, Jungwon. Thatâs the new instincts working. We can try breathing techniques orâ"
"I donât want to control it," he interrupted gently but firmly. "I want to act on it. With you. All of us do."
He stared at you with quiet intensity, the kind that made it hard to look away.
You swallowed and wrote a few notes, keeping your voice bubbly.
"Well⌠weâll work on finding a balance, okay? Step by step."
When the session ended, Jungwon stood up and gently touched the ribbon in your hair.
"This is cute," he murmured. "Makes me want to pull on it while Iâm behind you."
You let out a surprised little giggle and stepped back.
"Boundaries, Jungwon!"
He just smiled softly before leaving.
Ni-kiâs session was the most chaotic.
The tall maknae walked into the room with a big smirk, immediately dropping onto the couch right next to you instead of across from you. His thigh pressed against yours.
"Ni-ki," you scolded playfully, scooting away. "Personal space, remember?"
He grinned, showing his sharp fangs.
"Iâve been waiting days to be this close to you, Doctor. Personal space is overrated."
You laughed despite the way your heart was racing and tried to start the session.
"Tell me about your energy levels. Any aggression spikes?"
"Only when I think about how long Iâve wanted to fuck you," he answered without hesitation. "I want to put you on all fours and mount you like an animal. I want to bite your neck while I fill you up. Over and over until youâre dripping with me."
Your cheeks burned bright red. You covered your face with the tablet for a second before peeking over it with a shy but determined smile.
"Ni-ki! You canât just say things like that so casually!"
"Why not?" he asked, leaning even closer. "You smell so fucking good when youâre embarrassed. It makes me harder."
You stood up quickly, still trying to keep things light.
"Okay! Maybe we should continue this session with you sitting on the other couch, yeah?"
He laughed but obeyed, though his eyes never left your body for the rest of the hour. He kept teasing you with filthy comments wrapped in that playful tone until you were a flustered mess by the end.
After all individual sessions were done, Dr. Voss announced through the speakers that you could have group time in the common area for the rest of the evening.
You joined them for dinner. The table was full of food specially prepared for their enhanced bodies. You sat down and tried to keep the mood bright.
"Wow, this looks delicious! Letâs eat a lot, okay? You all need the energy."
They ate while watching you. The conversation started normal but quickly turned dangerous again.
Sunoo, who had been the gentlest during his session, suddenly spoke while staring at your neck.
"Your skin looks so soft, Doctor. I keep imagining how it would look with my marks all over it."
Jake reached over and lightly touched the back of your hand.
"Youâre blushing again. Itâs cute."
Heeseung, sitting at the head of the table, spoke in his deep voice.
"Youâre doing well, sunshine. Staying so cheerful even though we keep telling you how badly we want to ruin you."
You took a sip of water and smiled, though your voice was a little breathy.
"Iâm here to help you, not to run away. We can handle this together."
Jay smirked from across the table.
"You say that now. But when all seven of us lose control at the same time⌠even someone as bubbly as you might have trouble keeping up."
The table went quiet for a moment. The air felt thick with tension.
You stood up with a bright smile, trying to ease the atmosphere.
"Alright! Who wants to play a board game? We should do something fun to relax!"
A few of them agreed, but as the night went on, they kept finding small ways to get closer to you. Heeseung sat right beside you on the couch. Ni-ki kept brushing his leg against yours. Sunghoon stared at your lips like he wanted to devour them.
By the time you went back to your private room and locked the door, your legs felt weak and your mind was spinning with everything they had said to you.
You changed into your sleep clothes and lay in bed, heart beating fast.
Through the wall, you could hear them talking in low voices. Then a soft, deep growl echoed.
Heeseungâs voice carried clearly,"Sheâs holding on so well⌠but not for long."
Another voice (you thought it was Jay) answered,"I give it a few more days before we canât hold back anymore."
You pulled the blanket up to your chin, breathing a little faster.
A strange warmth had started spreading through your body. You werenât sure if it was just nervousnessâŚ
âŚor something the facility had changed in you.
The next few days followed a similar routine, but the tension in the habitat kept rising.
Every morning you walked into the common area with your bright smile, cute ribbon in your hair, and fresh lab coat, trying your best to keep things professional and light.
"Good morning, my favorite seven!" you sang out cheerfully on the sixth day. "Whoâs ready for todayâs check-ins? I brought some new calming exercises we can try together!"
They were all waiting again. Their stares had grown bolder. More possessive.
Heeseungâs eyes lingered on your legs. Jake licked his lips slowly. Ni-ki looked like he wanted to pounce.
You did group sessions that morning instead of individual ones. All seven of them sat in the large circle with you in the brightly lit therapy room.
"Today weâre going to talk about managing instincts," you said, clapping your hands with enthusiasm. "I know the new urges are very strong, but we can find healthy ways toâ"
"Can we touch you?" Sunoo asked sweetly, cutting you off. His angelic smile made the question sound almost innocent.
You blinked. "For⌠therapeutic reasons?"
Jungwon answered calmly, "Physical contact helps stabilize us. Thatâs what the doctors said, right?"
You hesitated for a second but nodded, keeping your bubbly tone.
"Okay, but only hands and arms for now. And be gentle!"
That was all the permission they needed.
Heeseung immediately pulled you closer until you were sitting between him and Jay on the big couch. His large hand settled on your thigh, thumb slowly stroking the fabric of your pants.
"Soft," he murmured near your ear. "Even softer than I imagined."
Jake took your left hand and placed it on his chest.
"Feel that?" he asked. "My heart beats faster when youâre close."
You laughed nervously, cheeks turning pink, but tried to continue the session.
"See? This is good. Grounding touch can help lower aggression. Now letâs talk aboutâ"
Sunghoon, sitting on the floor in front of you, suddenly rested his head on your knee. His hand wrapped around your calf possessively.
"Youâre warm," he said quietly. "Smell so fucking good."
You swallowed hard but kept smiling.
"Sunghoon, thatâs nice, but maybe a little higher than the knee would be betterâ"
He ignored you and gently pressed his nose against your thigh, inhaling deeply.
Ni-ki groaned from the other side. "Hyung, stop hogging her. I want a turn too."
The next hour became less of a therapy session and more of them finding excuses to touch you. Fingers brushing your waist. Hands playing with the ends of your hair. Jungwon gently tugging your ribbon while whispering how he wanted to use it to tie your wrists.
You were flushed and slightly breathless by the end.
"Alright! Thatâs enough physical contact for today," you announced, standing up quickly. "Great progress everyone!"
But your voice was a little higher than usual.
Later that evening, they convinced you to watch a movie together in the common area.
You sat on the massive sectional sofa with a big bowl of popcorn, trying to act normal. Within ten minutes, you somehow ended up in the middle of all of them.
Heeseung had his arm around your shoulders. Jakeâs hand rested on your knee. Sunoo was playing with your fingers. Ni-ki kept nuzzling into your hair whenever he laughed.
Halfway through the movie, Jay leaned in and spoke lowly against your ear.
"Your scent is driving us insane, you know that?"
You turned your head, still trying to keep it light. "Itâs just the shampoo Iâ"
"No," Jay interrupted, eyes dark. "Itâs you. Sweet. Fertile. Ready."
Your breath hitched.
Heeseungâs hand on your shoulder tightened slightly as he added, "We can smell how your body is changing too. The facility made you more sensitive, didnât they?"
You bit your lip and tried to focus on the movie, but your heart was racing.
"Iâm⌠Iâm just here to help you stay stable," you said softly, voice a little shaky but still warm.
Sunghoon, on your other side, suddenly pulled you onto his lap in one smooth motion. You let out a surprised squeak.
"Sunghoon!"
"Stay," he ordered quietly, arms wrapping around your waist. His chest was burning hot against your back. You could feel how hard he was through his pants, pressing against you.
The others watched with dark, hungry eyes.
You stayed there, flustered and warm, trying to act like this was still normal.
"You guys are getting really touchy lately," you said with a nervous giggle.
"Because weâre running out of patience," Ni-ki answered honestly. "Every night we talk about how we want to fuck you. How we want to fill you up until youâre swollen with our cum. How pretty youâll look carrying our babies."
Your face burned. You squirmed on Sunghoonâs lap without thinking, which only made him groan and hold you tighter.
"Be careful moving like that, Doctor," he warned, voice strained. "Iâm barely holding back as it is."
You stayed frozen after that, heart hammering wildly while the movie continued playing.
When it finally ended, Heeseung stood up and offered you his hand.
"Time for bed, sunshine."
He walked you all the way to your bedroom door. The others followed close behind like a pack.
Before you could close the door, Heeseung placed his hand on the frame, leaning down until his face was inches from yours.
"One day soon," he said quietly, eyes glowing with lust, "youâre not going to close this door on us."
You looked up at him, cheeks pink, breath a little fast, but still managed a small, brave smile.
"Goodnight, Heeseung."
You closed the door and leaned against it, breathing heavily.
Your body felt hot all over. A strange ache had started low in your stomach. The modifications they made to you were definitely working â you were becoming more sensitive to their pheromones every single day.
From the other side of the door, you heard seven low, deep voices murmuring.
And one clear sentence from Jungwon,"Soon. Sheâs almost ready."
The next day the facility staff increased the âphysical proximity allowance.â Dr. Voss told you it was necessary for better data. You had groaned. Man, this was getting too much now. You tried to stay positive when you stepped into the common area.
"Good morning, boys!" you greeted with your usual bright smile, ribbon bouncing in your hair. "Should we do some group breathing exercises today?"
The words barely left your mouth before Heeseung was already walking toward you. He didnât stop until he was right in front of you, towering over your smaller frame.
"No breathing exercises today, sunshine," he said, voice low and rough. Without waiting for permission, he wrapped his arms around your waist and pulled you flush against his chest.
Your hands instinctively pressed against his hard stomach.
"H-Heeseung⌠at least let me put my tablet down first," you laughed nervously, trying to keep your bubbly tone.
Jake appeared behind you instantly, pressing his body against your back and sliding his hands over your hips.
"You donât need the tablet right now," Jake murmured against your ear, his breath hot. "You need us."
Before you could reply, Sunghoon took the tablet from your hands and placed it on the couch. Then he stepped close and cupped your face with both hands, thumbs brushing your cheeks.
"Youâre getting red again," he said quietly, eyes dark. "Cute."
They didnât give you any space. You were completely surrounded â Heeseung in front, Jake behind, Sunghoon holding your face, while the others slowly closed in.
You let out a shaky giggle.
"Okay⌠this is a lot of morning affectionâŚ"
Sunoo smiled sweetly as he reached out and gently tugged the ribbon in your hair.
"Can I take this off?" he asked softly, already sliding it free. "I want to see your hair down."
Your hair tumbled over your shoulders. Ni-ki groaned at the sight.
"Fuck⌠thatâs so much better."
Jungwon stepped closer and ran his fingers through your loose hair, gripping it lightly at the roots.
"You look prettier like this," he said calmly. "Easier to hold onto."
Your heart was racing. Their hands started moving again â bolder than yesterday.
Heeseungâs big palm slid down your back and rested just above your ass, pulling you tighter against him so you could feel how hard he already was. Jakeâs hands roamed over your waist and stomach, occasionally brushing just under your blouse. Sunghoon leaned in and pressed slow, open-mouthed kisses along your neck.
You squirmed between them, breath coming faster.
"Guys⌠weâre supposed to be doing a sessionâŚ"
"This is the session," Jay said, stepping in to kiss the other side of your neck. "Stabilizing ourselves with our Anchor."
They slowly guided you toward the big couch. Heeseung sat down first and pulled you onto his lap so you were straddling one of his thick thighs. Jake sat right beside him and tugged you closer until your side pressed against his chest.
You tried to protest weakly, "This position is⌠really not professionalâ"
"Shh," Heeseung whispered, one large hand stroking up and down your thigh. "Just sit with us for a while."
For the next hour, they kept you trapped on the couch in the middle of them. Their touches grew steadily more possessive.
Fingers slipped under the hem of your blouse to caress bare skin. Hands squeezed your thighs. Someone (you were pretty sure it was Ni-ki) gave your ass a firm squeeze every time you tried to shift positions. Sunoo kept nuzzling into your neck, occasionally sucking gently on your skin, leaving faint marks.
At one point, Jungwon pulled you from Heeseungâs lap onto his own. He positioned you so you were sitting with your back against his chest, then wrapped one arm around your waist while his other hand rested dangerously high on your inner thigh.
"Youâre trembling," he whispered in your ear. "Are you scared⌠or excited?"
You bit your lip, face burning.
"A little bit of both," you admitted in a small voice.
Heeseung, now kneeling in front of you, slowly pushed your legs further apart so he could settle between them. His hands stroked up your thighs, getting closer and closer to where you were secretly throbbing.
"Look at me, sunshine," he ordered softly.
When you did, he leaned in and pressed a slow, deep kiss just below your ear, then another lower on your neck. You couldnât stop the tiny whimper that escaped you.
Jake chuckled darkly. "She makes such pretty sounds."
The touches kept getting heavier. They took turns pulling you onto their laps. Every time you moved to another lap, different hands explored your body â squeezing your waist, gripping your hips, stroking your thighs, occasionally brushing teasingly between your legs over your pants.
By the time lunch came around, you were flushed, breathless, and visibly affected.
During lunch they didnât let you sit alone. You stayed on Jayâs lap while he fed you bites from his plate.
After eating, they pulled you back to the couch.
This time they laid you down completely. Heeseung rested your head on his thigh, stroking your hair. Jake and Sunghoon each claimed one of your legs, slowly rubbing up and down. The others sat around you, hands never leaving your body.
"Youâre doing so well, Doctor," Sunoo praised sweetly, even as his fingers traced circles dangerously close to your chest. "Letting us touch you like thisâŚ"
You were starting to lose the ability to form proper sentences.
"I⌠I think we should slow down a littleâŚ" you breathed out.
Ni-ki smirked and leaned down to kiss your stomach over your blouse.
"Weâre only just getting started."
The day continued like that â long, endless touches, heated whispers, and growing hunger. By evening, your lab coat was long discarded, your blouse was wrinkled and slightly unbuttoned at the top, and your body felt like it was on fire.
When Dr. Vossâs voice finally came through the speakers announcing the end of the dayâs session, you were a trembling, pink-faced mess.
Heeseung kissed your forehead gently before helping you up.
"Go rest, sunshine," he said, voice husky. "Tomorrow⌠we wonât be this gentle anymore."
You walked back to your room on shaky legs, feeling seven pairs of eyes burning into your back.
The moment your door locked, you leaned against it and slid down to the floor, breathing hard.
This was no longer an experiment.
They were claiming you.
And you were running out of reasons to stop them.
The next morning, before you could even step into the common area, Dr. Elias Voss called you into the monitoring room.
You sat across from him, still wearing your lab coat, hair tied with your little ribbon. But your neck and thighs still carried faint marks from yesterdayâs touches.
âDr. Y/N,â he began, looking serious. âIâve reviewed the footage. Their behavior has crossed the line. The physical contact is becoming far too intense and sexual. This is supposed to be a controlled experiment, not⌠whatever this is turning into.â
You shifted uncomfortably in your seat.
âTheyâre just⌠adjusting to the new instincts,â you said softly, trying to defend them. âThe enhancements made their drives very strong. Theyâre calmer when they can touch me.â
Dr. Voss shook his head.
âThey are becoming dangerous. Weâre seeing increased aggression when youâre not in the room. If this continues, weâll have to pull you out and separate you from them for your own safety. Iâm going in to speak with them right now. They need to tone it down immediately.â
Your eyes widened.
âWaitâ Dr. Voss, maybe I should talk to them insteadââ
But he was already standing.
When you both entered the common area, all seven of them were waiting. The moment they saw Dr. Voss standing protectively close to you, their expressions darkened.
Dr. Voss spoke firmly, voice echoing in the large space.
âSubjects, your physical interactions with Dr. Y/N have exceeded safe parameters. From now on, you will maintain a minimum distance. No touching without explicit approval. No sexual comments. No marking. If you cannot follow these rules, we will remove Dr. Y/N from the habitat immediately for her protection.â
The air instantly became heavy.
Heeseungâs jaw clenched. His eyes flashed with clear anger.
âYou want us to stay away from our Anchor?â he growled, voice low and threatening.
Jakeâs hands curled into fists. âShe belongs with us. You donât get to decide how much we touch her.â
Sunghoon took a dangerous step forward. âSay that again.â
The tension exploded.
Ni-ki suddenly lunged forward with a snarl, aiming straight for Dr. Voss. Jungwon and Jay barely managed to grab him, holding him back as he fought against their grip, muscles bulging with rage.
âYou fucking touch her and Iâll rip your throat out!â Ni-ki shouted.
Sunoo, usually the softest, had a terrifyingly cold smile on his face. âYou want to take her away from us? After you made her our Anchor?â
Heeseung looked like he was one second away from violence too. His golden-ringed eyes were locked on Dr. Voss like prey.
Two security guards quickly entered the room, but they looked terrified.
Dr. Voss stepped back, visibly nervous now.
âSee?â he said to you urgently. âThis is exactly what I was worried about. We need to separate you right now for your safety. Come with me, Dr. Y/N.â
He reached for your arm.
But you stepped forward, placing yourself between the boys and Dr. Voss.
âWait!â you said loudly, your voice still carrying that bright but firm tone. âEveryone, please calm down!â
You turned to the seven of them. They were breathing heavily, eyes wild with anger and possessiveness.
You gave them your softest, warmest smile.
âItâs okay,â you said gently. âIâm fine. Really. Dr. Voss is just worried about me⌠but I chose this. I chose to be your Anchor. Iâm not scared of you.â
You slowly walked closer to them, even as Voss tried to stop you.
You reached out and gently placed your hand on Heeseungâs chest. His breathing was ragged, but he stilled under your touch.
âIâm staying,â you said clearly, looking at all of them. âWe can compromise, okay? Just⌠try not to be too rough. For me?â
The boys slowly relaxed â but only because you were touching them and speaking softly.
Heeseung grabbed your waist and pulled you against him protectively, glaring at Dr. Voss over your head.
âShe stays,â he declared, voice final. âIf anyone tries to take her, we will destroy this entire facility.â
The other six moved closer, surrounding you like a protective pack.
Dr. Voss looked extremely uncomfortable, but he could see that forcing the issue right now would end badly.
ââŚVery well,â he said stiffly. âBut Iâm increasing monitoring. Any extreme behavior and this experiment ends. Dr. Y/N, you have final authority to call for extraction if it becomes too much.â
You nodded, still smiling even though your heart was racing.
âThank you, Dr. Voss. Iâve got this.â
As soon as Dr. Voss left the room, the boys turned all their attention back to you.
Heeseungâs grip on your waist tightened.
âYou defended us,â he murmured, voice dark and pleased. âGood girl.â
Jake pressed against your back, kissing the side of your neck.
âYouâre really ours now, arenât you?â
You let out a shaky breath, cheeks warm.
âIâm your Anchor⌠so yes. Iâm staying with you.â
Sunghoon tilted your chin up.
âYou just stopped us from tearing that man apart,â he said quietly. âThat means you understand. We need you.â
The atmosphere had completely shifted again. Their bad mood was turning into something even more intense â raw hunger mixed with dark satisfaction that you had chosen them.
Ni-ki stepped close and whispered against your ear,
âNow that youâve told them youâre staying⌠we donât have to hold back as much, right?â
Your breath hitched.
This was getting more dangerous by the day.
Dr. Elias Voss sent a message asking you to come to the monitoring room alone. The seven boys were told to wait in the common area.
You walked in nervously, still wearing your slightly wrinkled lab coat and ribbon in your hair. Dr. Serena Voss and the senior staff doctor were already waiting inside with Dr. Elias.
Dr. Serena smiled at you gently and asked you to sit down.
âDr. Y/N⌠I'm Dr. Elias's wife,â she began. "We wanted to speak with you privately."
Dr. Elias Voss looked serious.
âWeâve been monitoring their latest data. The heat cycle is starting sooner than expected. Their hormonal levels are spiking dramatically.â
The senior staff doctor was more direct.
âTo put it plainly⌠theyâre going to want to fuck you. All seven of them. Probably quite aggressively. Their breeding instincts are extremely high right now. Theyâve been fantasizing about it for weeks â filling you up, breeding you, claiming you completely.â
Your cheeks burned red. You gripped the edge of your seat.
Dr. Serena continued calmly,
âDuring the heat, they may lose control. They might fuck you for hours. One after another, or even more than one at the same time. Their bodies will demand release inside you. Weâve modified your body to handle it, but it will still be intense.â
She leaned forward slightly.
âYou still have a choice. We can try to sedate them through the worst of it⌠but it will be painful for them, and thereâs a high chance theyâll break containment to get to you anyway.â
Dr. Elias Voss added quietly,
âIf you go into that nest room with them, expect to be fucked. Thoroughly. They see you as their mate now. This wonât be gentle clinical sex. It will be raw.â
You sat there in silence for a long moment, heart pounding hard in your chest. Your face was completely flushed.
âI⌠I understand,â you whispered, voice small but steady. âI chose to be their Anchor. Iâm not going to abandon them now.â
Dr. Serena gave you a sympathetic look.
âThen weâll prepare the nest room. Take a few minutes to collect yourself before you go back to them.â
The three doctors left you alone in the monitoring room for a moment.
You sat there, breathing shakily, thighs pressed together as you tried to process everything they had just told you so bluntly.
When you finally stepped back into the common area, all seven boys turned to look at you at once. They could clearly see how flushed and nervous you were.
Heeseung walked over immediately and pulled you into his arms.
âWhat did they say to you?â he asked, voice low.
You hid your face in his chest, voice muffled.
ââŚNothing important,â you lied softly. âJust some medical updates about the heat cycle.â
Jake stepped closer and gently stroked your back.
âYouâre shaking, baby,â he murmured. âYour heart is racing.â
Sunghoon tilted his head, eyes narrowing. âYouâre lying. You smell even more nervous now.â
You hugged Heeseung tighter, refusing to lift your head.
âIâm okay⌠really. Iâm just a little overwhelmed. Thatâs all.â
Ni-ki chuckled darkly from behind you.
âThey told you weâre going to fuck you, didnât they?â
You didnât answer. You just pressed your burning face deeper into Heeseungâs chest.
Heeseungâs hand rubbed slow circles on your lower back.
âYou donât have to tell us,â he said gently, but his voice was getting rougher. âWe already know whatâs coming.â
He leaned down and kissed the top of your head.
âCome on, sunshine. Letâs go to the nest room.â
The seven of them surrounded you as they guided you toward the large reinforced nest room. Your heart was beating so fast you could barely think.
You had chosen this.
And now there was no turning back.
The nest room was enormous and dimly lit, with a massive circular bed in the center covered in soft black and cream sheets. There were pillows everywhere, making it look like a giant nest. The boys guided you inside and closed the heavy reinforced door behind them.
At first, they were surprisingly gentle.
Heeseung sat on the edge of the bed and pulled you onto his lap, cradling you carefully. The others sat around you in a circle, watching you with intense but controlled eyes.
âYouâre safe here,â Heeseung murmured, stroking your back slowly. âWeâre not going to jump on you like animals⌠not yet.â
Jake leaned in and kissed your temple softly. âTry to relax, sunshine. We know this is a lot.â
You gave them a small, nervous smile, still trying to keep your bubbly tone even though your voice was shaky.
âOkay⌠good. Because Iâm really nervous,â you admitted with a soft laugh. âSeven of you is⌠a lot.â
They kept you in the middle, touching you gently â hands on your waist, thighs, hair, and back. No one pushed further. They were clearly waiting.
You stayed like that for almost an hour, talking quietly, them comforting you while their bodies grew hotter against yours.
Then the clock on the wall struck 12:00.
The main lights in the room slowly dimmed, shifting into a deep, warm red glow. The temperature in the room seemed to rise instantly.
All seven of them stiffened at the same time.
Their breathing changed â becoming heavier, deeper. Their eyes darkened dramatically, the golden rings around their pupils glowing brighter. You could feel their bodies heating up against you, muscles tensing.
A small hidden earpiece you didnât even know you were wearing crackled to life.
Dr. Serenaâs voice spoke calmly but clearly,âHeat cycle has officially begun, Y/N. Their pheromones and aggression levels are spiking. Get ready. They wonât be able to hold back much longer. Remember to breathe. Your body can handle them.â
The moment she finished speaking, Heeseungâs grip on your waist became much tighter. A low, deep growl rumbled from his chest.
âFuckâŚâ he cursed under his breath, burying his face in your neck and inhaling deeply. âYou smell so fucking good.â
Jakeâs hand slid up your thigh, squeezing harder than before.
âSunshineâŚâ he groaned, voice strained. âI canât⌠I need you.â
Ni-ki crawled closer, eyes completely feral now as he stared at you like prey.
âIâm so fucking hard it hurts,â he growled.
The gentle touches from earlier were rapidly disappearing. Their hands grew bolder, gripping, squeezing, pulling you closer like they were losing control by the second.
Sunghoon reached out and started unbuttoning your blouse with shaky fingers, breathing heavily.
Jungwonâs usual calm voice was gone, replaced by a low, dangerous tone,âTake her clothes off.â
You let out a shaky breath, heart hammering wildly in your chest as seven pairs of glowing eyes locked onto you with pure, unrestrained lust.
âFuckâŚâ Heeseung breathed against your neck. âItâs starting.â
Dr. Serenaâs voice crackled softly in your earpiece one last time,âHeat cycle is active. It will be for the next 24 hours. Try to breathe, Y/N. They wonât be able to hold back now.â
Heeseungâs lips crashed against yours in a deep, desperate kiss. No more gentleness. This kiss was hungry, possessive, and consuming. His tongue claimed your mouth as his hands roamed down your body, ripping your blouse open roughly. Buttons scattered across the bed.
Jake was behind you instantly, yanking your pants and panties down your legs in one swift motion, leaving you completely exposed.
âSo fucking pretty,â Jake groaned, his hands spreading your thighs wide for the others to see.
You whimpered into Heeseungâs mouth as Sunghoon dropped between your legs and dragged his tongue slowly up your soaked pussy, groaning at your taste.
âSheâs dripping,â Sunghoon growled before sucking your clit into his mouth.
You jerked hard, moaning loudly. Ni-ki grabbed your hair and turned your head, feeding his thick, heavy cock past your lips.
âThatâs it⌠suck me, Doctor,â he moaned, slowly pushing deeper into your mouth.
They worked in perfect sync.
Heeseung pulled away from your lips only to latch onto your breast, sucking hard on your nipple while Jay claimed the other one. Jake and Sunoo kissed and bit along your neck and shoulders, leaving dark marks everywhere.
Sunghoon pushed two long fingers inside you while still licking your clit, curling them perfectly against that spot that made your eyes roll back.
You were moaning helplessly around Ni-kiâs cock, body trembling as pleasure attacked you from every direction.
After a few minutes, Heeseung moved between your legs.
âLook at me,â he ordered, voice rough.
You barely managed to meet his glowing eyes before he lined up his massive cock and pushed inside you in one long, slow, powerful thrust.
A muffled scream left your throat as he stretched you open so wide it burned.
âFuck⌠so tight,â Heeseung groaned deeply, eyes fluttering shut for a moment. âYouâre taking me so well, sunshine.â
He started fucking you with deep, heavy strokes â pulling almost all the way out before slamming back in. The wet, obscene sounds of his cock plunging into your soaked pussy filled the entire room.
Ni-ki pulled out of your mouth and was quickly replaced by Jake, who fucked your throat more eagerly.
They began rotating.
After Heeseung had fucked you hard for several minutes, Jay took his place, pounding into you even rougher. Then Sunghoon. Then Jake.
Every time one of them came, they buried themselves as deep as possible and pumped you full of thick, hot cum.
By the time the fourth load was shot inside you, your pussy was a creamy, messy wreck â cum leaking out with every thrust.
You were crying, shaking, and moaning incoherently, lost in overwhelming pleasure.
Sunoo smiled sweetly even as he pushed his cock into your cum-filled pussy.
âOur pretty little cumdump,â he whispered lovingly while fucking you slow and deep, pushing the previous loads even deeper inside you.
Jungwon was next. He gripped your hips hard and fucked you with powerful, precise strokes, eyes locked on your face the entire time.
âYouâre doing so well, baby,â he praised. âTaking all of us like a good Anchor.â
Ni-ki was the roughest. He flipped you onto all fours and fucked you from behind like an animal, spanking your ass hard while growling.
âFuck yesâ take my cock. Gonna fill you until youâre pregnant with our babies.â
Heeseung knelt in front of you and fed you his cock again, fucking your throat while Ni-ki destroyed your pussy from behind.
You were completely surrounded.
Used.
Claimed.
Filled.
And they still had hours left in their heat.
The red lights made everything feel hotter, more sinful.
You were a complete mess â covered in sweat, cum, and marks from their mouths and hands.
Ni-ki was still fucking you hard from behind, his hips slamming against your ass with wet, filthy sounds.
âFuckâ Iâm gonna cum again,â he growled, spanking your ass hard before burying himself deep. You felt another thick load shoot inside you, so much that it leaked out around his cock and dripped down your thighs.
The moment he pulled out, Jungwon took his place again.
He flipped you onto your back again and pushed your legs up toward your chest, folding you in half.
âLook at this pretty pussy,â Jungwon groaned, staring at the mess they had made of you. âSo full of our cum alreadyâŚâ
He slid inside easily because of how wet and stretched you were. His thrusts were deep and controlled, but each one was powerful enough to make your breasts bounce.
âSo good,â he moaned. âYou were made to take our cocks.â
Heeseung moved beside your head and fed you his cock again, slowly fucking your throat while Jungwon bred your pussy.
You were crying around Heeseungâs cock from the overwhelming pleasure, body shaking every time Jungwon hit that perfect spot inside you.
After Jungwon filled you with his load, Jake and Jay moved together.
Jake lay down on the bed and pulled you on top of him, sliding his cock back into your messy pussy in one smooth thrust. He held you against his chest as Jay knelt behind you.
You whimpered when you felt Jayâs cock press against your already full pussy.
âW-waitâ both?â you gasped.
âYes, baby,â Jake whispered, kissing you softly. âYou can take it.â
Jay pushed in slowly, stretching you even more. The feeling of two thick cocks inside you at the same time made your eyes roll back and a broken moan rip from your throat.
âFuckâ so tight,â Jay groaned, slowly starting to move.
They found a rhythm â Jake thrusting up while Jay thrust down. The double penetration made you feel impossibly full. Every movement made wet, squelching sounds as cum was pushed out of you.
Sunoo knelt beside you and stroked your hair gently, even as he pushed his cock into your hand.
âYouâre so beautiful like this,â he whispered sweetly. âAll fucked out and full of us.â
Heeseung, Sunghoon, and Ni-ki watched with dark eyes, stroking themselves as they waited for their next turn.
Jake and Jay fucked you together until they both came deep inside you, adding even more cum to the mess.
By the time they pulled out, your pussy was gaping slightly, creamy white cum pouring out of you in thick streams.
But they werenât done.
Sunghoon pulled you onto his lap, facing him, and sank you down on his cock. Heeseung moved behind you and pushed back into your pussy as well, making it three cocks stretching you at once â though only two were inside your pussy.
You screamed in pleasure, completely overwhelmed.
Heeseung growled in your ear, âThatâs our good girl. Taking everything we give you.â
They used your body for what felt like hours â rotating positions, fucking you alone, in pairs, sometimes making you ride them while others used your mouth and hands.
Every single one of them came inside you at least twice.
Your belly felt swollen and heavy with their cum. Your voice was hoarse from moaning and crying their names. Tears of overwhelming pleasure ran down your cheeks.
At one point, all seven of them were touching you at the same time â hands, mouths, cocks everywhere.
Heeseung was fucking you deep while whispering hotly against your ear:
âGonna keep you like this for days, sunshine. Full of our cum. Breeding you until it takes.â
You came again hard, shaking violently as another orgasm ripped through your body.
They praised you nonstop.
âGood girl.â
âOur perfect Anchor.â
âTaking our cocks so well.â
âGonna look so pretty pregnant with our babies.â
Hours blurred together in a haze of sweat, cum, and overwhelming pleasure. Your voice had gone hoarse from screaming their names, your bubbly professionalism long shattered into broken moans and whimpers.
By hour six, they had you in the center of the massive bed, surrounded by pillows soaked with fluids. Heeseung had you riding him reverse cowgirl, his thick cock buried to the hilt while Jay knelt in front of you, feeding his own length down your throat. Every bounce made more cum from previous loads leak out around Heeseungâs shaft, dripping messily onto the sheets.
âFuck, look at her,â Jake groaned from the side, stroking himself as he watched. âOur pretty little Anchor is stuffed so full sheâs leaking everywhere.â
Sunghoon moved behind Heeseung and pushed two fingers alongside his hyungâs cock, stretching you even wider. You sobbed around Jayâs length, thighs shaking violently as another orgasm tore through you.
Sunoo, ever the deceptively sweet one, cupped your face gently while Jay used your mouth. âYouâre doing so well, Doctor~ Taking every drop like you were made for us.â He leaned in and kissed your tear-streaked cheek even as your body jolted from the double penetration below.
Ni-ki and Jungwon took turns claiming your breasts, sucking hard enough to leave blooming marks while their hands roamed your swollen belly, already rounded slightly from the sheer volume of cum pumped into you.
They rotated constantly. Sometimes two in your pussy, one in your ass (after careful but relentless preparation), one in your mouth, and the rest using your hands or marking your skin. At one point they had you completely suspended between them â Heeseung and Sunghoon holding your legs wide open while Jake and Jay fucked into you together, their cocks rubbing against each other inside your overfilled cunt.
The wet, filthy sounds echoed endlessly. Growls, praises, and filthy promises filled the air.
âGonna breed you until your womb is overflowing,â Jungwon panted, slamming into you with precise, punishing thrusts.
âYouâll smell like us for weeks,â Sunghoon growled against your neck before biting down.
Ni-ki was the most vocal and wild, fucking your ass with deep, animalistic snaps of his hips while calling you his favorite cumslut in that playful-yet-feral tone.
Hours passed. The heat made them insatiable.
They came inside you over and over â thick, heavy loads that made your belly visibly swell. Your pussy and ass were puffy, red, and constantly leaking their seed. At times they simply held you down and took turns breeding you slowly, savoring the way your body clenched and milked them even when you were too exhausted to do more than tremble.
By hour fourteen you were a limp, sobbing, blissed-out mess. They had to hold you up for most positions now, but they never stopped praising you.
Jungwon, ever the leader, pulled you into his arms during a brief lull around hour eighteen. The red lights were still glowing, but their movements had grown slightly less frantic.
He kissed you deeply, almost tenderly, while the others pressed close, hands stroking your marked skin.
âYouâre ours now, sunshine,â he whispered against your swollen lips. âNo more pretending this is just clinical. You belong in this nest.â
You could only nod weakly, voice gone, but you managed a tiny, exhausted smile â that same bubbly spirit flickering through even now. âY-yeah⌠yoursâŚâ
The final hours were slower, deeper. They took you one by one again, savoring every last thrust as the heat cycle began to wane.
Jungwon was last, folding you gently beneath him and rocking into you with long, possessive strokes while the others watched, hands still touching you everywhere.
When he finally came, flooding you with what felt like the heaviest load yet, the red lights slowly faded back to soft white.
The heat cycle ended.
Silence settled over the nest room, broken only by heavy breathing and the soft sounds of shifting bodies. All seven of them collapsed around you in a protective pile of limbs and warmth. You lay in the center, completely spent, body aching in the best and worst ways, covered in marks, sweat, and drying cum. Your belly was noticeably rounded from everything theyâd pumped into you. Your hair was a wild mess, ribbon long lost somewhere in the sheets.
Heeseung pulled you gently against his chest, stroking your back with surprising tenderness. His voice was rough but soft now. âYou did so well, Y/N. Our perfect little doctor.â
Jake nuzzled into your neck from the other side, pressing soft kisses to the marks heâd left. âWeâre so proud of you, baby. You took everything.â
Sunghoon rested his head on your thigh, eyes closed, one hand gently massaging your sore muscles. Sunoo curled against your stomach, kissing the swollen area almost reverently. âWeâll take care of you now.â
Jay brought water and a warm cloth, carefully cleaning your face and neck while Jungwon and Ni-ki massaged your legs and feet. They were all still hard, but the feral edge had dulled into deep, possessive satisfaction.
âYouâre not leaving this nest for a while,â Ni-ki murmured, though his tone was playful again. âDoctorâs orders can wait.â
You let out a weak, raspy laugh â the first real sound youâd made in hours that wasnât a moan or sob.
âI⌠I think Iâm going to need a new lab coat,â you whispered, voice completely wrecked. âAnd maybe⌠a week of recovery.â
They chuckled softly around you, the sound warm and affectionate now that the peak of the heat had passed.
Dr. Serenaâs voice eventually came through the hidden speakers, sounding both impressed and slightly concerned.
âCycle complete. Vital signs stable. Dr. Y/N, you⌠handled that exceptionally well. Weâll give you all 48 hours before any further check-ins. Rest.â
The speakers clicked off.
Heeseung tucked you more securely against him, the others closing in until you were cocooned in their heat and scent. Someone pulled a soft blanket over all of you.
âSleep, sunshine,â Heeseung murmured, lips brushing your forehead. âWeâve got you.â
As your eyes fluttered shut, surrounded by seven enhanced, utterly devoted mates, you felt a strange mix of exhaustion, satisfaction, and warmth blooming in your chest.
You had chosen this.
And even as your body ached and your mind floated in a pleasure-drunk haze, a small, bubbly part of you whispered that you didnât regret it.
Not even a little.
The experiment had evolved far beyond science.
You were theirs now.
And they were never letting their Anchor go.
The nest room was quiet except for the soft sound of breathing and the occasional rustle of sheets. The red emergency lights had long faded, replaced by the gentle, warm white glow of the habitatâs normal lighting. You had no idea how long youâd been asleepâonly that your body felt heavy, sore in the most intimate places, and deliciously used.
You woke up slowly, cradled against Heeseungâs broad chest. His arm was locked around your waist, possessive even in sleep. Jake was spooned behind you, face buried in the back of your neck, while Sunghoonâs head rested on your thigh like it belonged there. The others were tangled around you in a warm pile of limbs and muscle.
A tiny whimper escaped you when you tried to shift. Everything achedâyour thighs, your core, your throat. Your belly still felt oddly full and swollen from the sheer amount of cum theyâd pumped into you.
Heeseung stirred immediately, golden-ringed eyes cracking open. His voice was low and rough with sleep. âSunshine⌠youâre awake.â
The others woke almost in sync, like a pack sensing their mateâs movement. Soft kisses and gentle hands immediately began moving over your bodyâchecking, soothing, claiming.
âEasy,â Jay murmured, pressing a warm cloth between your legs to clean you carefully. âYou were so good for us, baby.â
Sunoo nuzzled against your stomach, kissing the soft, slightly rounded swell there with almost worshipful tenderness. âLook at you⌠still carrying so much of us.â
You let out a weak, raspy laugh, your usual bubbly tone cracking through the exhaustion. âI feel like I got hit by a truck⌠seven very enthusiastic trucks.â
Ni-ki chuckled, fangs flashing as he grinned. âYou took all seven trucks like a champ, Doctor.â
They didnât let you move much for the first few hours. Someone brought water and electrolyte drinks. Jungwon fed you small bites of nutrient-dense food by hand while Jake massaged your sore legs. Heeseung kept you mostly on his lap, your back against his chest, his large hands gently rubbing circles over your swollen belly.
âYou did so well,â he whispered against your ear, voice full of pride and lingering hunger. âOur perfect Anchor. We were worried weâd break you⌠but you kept smiling even when we were ruining you.â
You blushed deeply, hiding your face against his neck. âI⌠I chose this. Iâm not going to run away now.â
The 48-hour recovery window passed in a blur of gentle touches, deep kisses, and surprisingly soft intimacy. They took turns holding you, bathing you in the large attached bathroom, and whispering praises. The feral edge of the heat had dulled, but their possessiveness remainedâstronger than ever.
When Dr. Voss finally allowed you all back into the main habitat area, you tried to return to some semblance of professionalism.
You showed up in a fresh white lab coat over a soft baby blue blouse, hair neatly tied in your signature cute bun with the little white ribbon. Tablet in hand. Bright smile on your face, even if you were still walking a little carefully.
âGood morning, everyone~!â you greeted cheerfully, though your voice was still slightly hoarse. âHow are my favorite seven feeling today? Any lingering⌠side effects from the heat?â
They were all waiting for you.
The moment you stepped fully into the room, the atmosphere thickened. Seven pairs of eyes tracked your every movement with dark, satisfied hunger.
Heeseung was on you first. He pulled you against his chest without hesitation and kissed you deeply, tongue claiming your mouth like he hadnât spent the last 24 hours inside you.
When he finally pulled back, you were breathless and flushed.
âH-Heeseung! Weâre⌠weâre supposed to do a proper check-in sessionââ
Jake appeared behind you, arms sliding around your waist. âCheck-in can wait five minutes. We missed you.â
âYou were literally sleeping on top of me for two days,â you laughed, trying to sound stern but failing as Sunghoon tilted your chin up for a slow, deep kiss of his own.
Sunoo smiled sweetly while playing with the ribbon in your hair. âYou look so cute trying to be professional again⌠even with our marks all over your neck.â
You instinctively tugged your collar higher, cheeks burning.
Dr. Vossâs voice came through the speakers, sounding exhausted. âDr. Y/N, try to keep them⌠contained. Weâre resuming light sessions today. Physical contact is still permitted but try not to⌠escalate immediately.â
The boys smirked.
âToo late,â Jungwon said calmly, pulling you onto his lap on the big couch. He positioned you sideways so your legs draped over his thigh, one hand resting possessively high on your inner thigh.
The âsessionâ quickly became them taking turns holding you while you asked your questions. You tried to stay focusedârecording mood stability, energy levels, any residual aggressionâbut it was nearly impossible.
Every time you tried to write notes, someone would kiss your neck, squeeze your thigh, or slide a hand under your blouse to caress bare skin. Ni-ki kept nipping at your ears. Sunghoon stared at your lips like he wanted to devour them again.
At one point Heeseung pulled you onto his lap facing him, your core pressed right against the obvious bulge in his pants.
âYouâre still wet,â he murmured, voice low enough that only you could hear. âI can smell it. Our cum is still leaking out of you, isnât it?â
Your breath hitched. You gripped his shoulders, trying to keep your voice steady. âT-Thatâs⌠scientifically interesting. We should monitorââ
Jay leaned in from the side and bit your shoulder lightly. âStop pretending you donât love it.â
You lasted another twenty minutes before your tablet was gently taken away and set aside.
This time they didnât go into full heat mode. Instead, they loved you slowly on the big sectional couchâtaking turns fucking you with deep, lazy thrusts while the others watched and touched you. No rushing. Just long, claiming strokes and filthy praises whispered against your skin.
When they finally finished, you were once again a flushed, cum-filled, blissed-out mess in the middle of them, lab coat discarded somewhere on the floor, blouse open, ribbon slightly crooked in your messy hair.
Heeseung stroked your cheek, eyes glowing with dark affection.
âYouâre not our doctor anymore, sunshine,â he said softly but firmly. âYouâre our mate. Our Anchor. Our everything.â
You looked up at all seven of themâtall, powerful, completely devotedâand felt that familiar mix of nervousness and warmth bloom in your chest.
A small, genuinely bubbly smile tugged at your swollen lips.
ââŚI think Iâm okay with that.â
Weeks later,
The experiment had fundamentally changed.
Sessions still happenedâmostly because you insisted on keeping some structureâbut they almost always ended with you being passed between them, filled, marked, and praised until you couldnât remember your own name.
Your body had adapted even further. You craved their touch now. Their scent. The feeling of being completely surrounded and claimed.
Some mornings you still greeted them with your bright âGood morning, boys~!â and cute ribbon⌠only to be bent over the nearest surface within minutes.
They never got tired of you.
And deep down, you never wanted them to.
You were theirs.
Completely.
Author: If you ever want an epilogue, just say the word, baby. Iâm here.
@heesvnqie | Do not steal, plagiarise, translate, or repost any of my work
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