When Robby requested that Dennis watch his house while he was away on sabbatical it was supposed to be simple; ‘Supposed to be’, being the key phrase. It was a favor, and a place Dennis could hang out other than the farm and Trinity’s apartment. He could save some extra money plus have a shorter commute to the Pitt for his shifts.

“Soooo you’ll be staying there?” Trinity lingered in the doorway to his room as Dennis packed.

“I guess so. Probably not all the time. But I can give you and Garcia some space.”

“...Staying at our boss’ house to water his plants?”

“He has a dog!” his tone was far too defensive to slip past Trinity.

“What kind of dog would he have?”

“I didn’t ask.”

Trinity hums to herself as Dennis crams his bag of toiletries into his duffel bag, “Probably something sad looking. A basset hound. Maybe that's why he likes you so much” Trinity guesses.

“I’m ignoring that” he zips up the bag and slings it over his shoulder.

“Uh huh. Later, Huckleberry”

Dennis left the apartment, waiting for his cab on the sidewalk, opening his phone. Robby had texted him the address and the code for the front door before he left town. Of course Dennis looked up the address with Trinity just to see where their boss lived. The pictures looked nice, but they didn’t compare to the actual house when he got there. It was a red-brick split level with an attached garage. It was fitting. Dennis didn’t waste time, taking the concrete steps up to the front door and punching in the code.

He shucks off his shoes in the foyer, looking up at the second level. The lights were on, and it even sounded like the TV was on. Though it was nice that Robby left things on for when Dennis got there, he guessed. Dennis took the stairs up two at a time, shrugging the bag free from his shoulder and letting it flop onto the floor near the sofa. It definitely wasn’t what he was expecting. It was so well decorated and cozy, it reminded him of Trinity’s apartment. The lighting was a warm yellow, cast from various lamps that looked several decades old. There was even a shag carpet between the couch, some armchairs, and a media center with the TV. Dennis clicks his tongue, excited to meet Robby’s dog, calling out as he walks through the living room, his voice pitching up into a baby talk, “Puppy! C’mere!”

He heard the floor creak down a hallway, turning to follow the noise. A figure slid through the first doorway, stepping into the hallway directly in front of him. Far larger than a dog. Dennis screamed, jolting and stumbling back a couple steps to catch himself against the opposite wall.

“Who-Who’re you?!”

“Are you Dennis? Robby said you were petsitting me.”

Dennis’ eyes flicked down from your face, catching the sleek black leather and polished silver of a collar. Oh.

His entire face burned all the way to the tips of his ears and down his neck. His eyes involuntarily scanned them. The loungewear that hung off their frame, comfortable and lazy, the collar stood as stark opposition to the rest of their clothing.

They don’t seem phased in the slightest as Dennis opens and shuts his mouth as he struggles to come up with the right words to say. A sweet little smile graces their lips, it makes his stomach twist, and they saunter right by him.

After an awkward few hours Dennis figured they weren’t so bad. Though he was pretty surprised that Robby was dating someone so much younger. When they explained they were afraid of being alone in the house, resting a hand on his knee while he lounged on the couch together he knew he couldn’t just leave. They were scared! So, he decided he’d stick around.

It didn’t take long for Dennis to start feeling terribly guilty. They were touchy, and it made heat swell through him. Robby’s partner was just being friendly, they would rub his back, ruffle his hair, or even just casually brush against him with their ass while walking around him in the kitchen. It all had to be accidental. He didn’t want to think about the alternative. He couldn’t help himself, hiding away in the guest room or the bathroom to press a palm roughly against the front of his pants. Willing his arousal to end through sheer willpower.

Two weeks. Fourteen days of staying in the same house, leaving to work like usual and returning to them lounging somewhere like a pampered dog. It was long enough to adjust and expect a certain thing. So, as Dennis slips off his shoes by the front door he expects to hear their melodic voice greet him from somewhere in the house. He feels a bang of worry when they don’t.

“Anybody home?” Dennis calls out as he lets his backpack slump to the floor beside the sofa. Wandering deeper into the house.

He stops in the doorway of the kitchen, seeing a figure he hadn’t expected. Abbot has his back toward the doorway, leaning back against the kitchen counter. The soft wet noises echo around the kitchen. Dennis can vaguely see Robby’s partner, on their knees in front of Jack. A hand pulling their hair back from their face, guiding their movements steadily.

“There you go, puppy. You’re getting good at this.”

“Hey?” Dennis cringes a little at his own voice, a traitorous arousal making his jeans tent. 

The worst part is that they don’t rush to pull apart. Abbot tugs their hair back, saliva connecting their bodies briefly. Deft fingers fix Jack’s pants for him and in return he catches their hand and helps them to their feet.

“My bad! I didn’t realize you were home already, Denny!” they laugh. Dennis’ eyes flick from their drool soaked chin to Jack. The attending rolls his shoulders back and pushes off from the counter. “Robby texted me that he’s on his way back” Jack mumbles as he turns on the faucet to wash his hands. The pup joins him there, washing their face with a few passes of their hands to remove any evidence of what happened.

“I told you, he can’t handle being away for more than a week. You doctors are all the same”

Dennis had never been more confused in his entire life. How could they do this to Robby? They were cheating on Robby with his best friend! It made his chest ache as his head spun. Dennis doesn’t say a word as Jack walks past him to the bathroom. Robby’s partner got back to work on cooking dinner. So, Dennis spun on his heels and sat in the living room.

The second the door opened Dennis was on his feet, B-Lining it for the door as Robby steps inside.

“Hello!”

“Robby; We’ve got to talk.” Dennis’ tone makes Robby’s eyebrows pinch together.

“About?”

“I saw your partner and doctor Abbot…together…in the kitchen. I’m really sorry, but you should know.” Dennis was tense. He wasn’t sure what he was expecting. But it wasn’t Robby’s eyes crinkling and his eyebrows raising as he gives a slow nod.

“You…were worried about them cheating on me?”

“Yes…?”

“I thought you said you invited him?” Jack interrupts, standing in the living room, looking at Robby.

“I did. I invited him to pet sit for me.” Robby chuckles, slipping off his jacket. They both seemed to ignore their subject standing between them.

“That is not asking.”

“I figured he’d pick up on the nuance. You know how our puppy can be.”

“Excuse me. What are you talking about?” His eyes go to Jack, and Jack vaguely gestures toward Robby.

Robby sighs and seems to think, tilting his head to the side. It’s long enough for his partner to pop out of the kitchen, “Oh! Welcome home, daddy!” they lean up on their tip-toes to wrap both arms around Robby.

“Were you well taken care of, pup?” Robby asks while pressing a long kiss to their forehead.

“Hardly! I had to call Jack over today. I couldn’t take it anymore”

“Probably because somebody didn’t actually ask for him to help you, puppy” Jack scowls a little at Robby. They turn in Robby’s arms, facing Dennis as he stood rooted in the small foyer.

“Seriously? He was trying to invite you to join in.”

“Join in what?”

“We’re poly. Open relationship. Whatever you want to call it. We’re all having sex.”

“Oh.” Dennis felt his guilt melt away. Suddenly he didn’t feel so bad at constantly getting turned on at every lazy touch or movement.

“No pressure, man.” Jack adds in that low tone.

“No! I mean, yeah. I would be interested.” Dennis swallows around nothing as their puppy grabbed both his hands and dragged him to the living room. He finally acts, settling his hands on their hips and setting them on the couch, kneeling on the floor between their parted thighs.

Only vaguely aware of footsteps following them to the living room as he pulls off their clothing. Pleased to find their underwear clinging to their folds, creating a damp patch. He lifts his eyes to look up at them, bringing their thighs up over his shoulders, “You’re so wet…you didn’t get to finish earlier?”

They shake their head, raising their hips toward his face just to feel the warm ghost of Dennis’ breath. The first part of him they feel is his nose, pressing into their mound as he mouths at their sex.

“Hah, do we have an eater over here?” Robby asks from somewhere behind Dennis.

“Yes, sir”

“Good. They complain about beard burn too much” Jack huffs out a half laugh.

When they giggle Dennis can feel the way their body twitches. Their noise tapers into a moan as he licks deeper into them. By the time they finish his tongue is cramping, his fingers kneading their thighs as fluid gushes across his mouth. Dennis eases their thighs down only for Robby to nudge him aside. His pants are already down enough to free his cock as he tugs the pup down to lie on the couch. Thanks to Dennis’ work it doesn’t take much effort to sink inside them. Robby groans, pressing an open palm down on their stomach as he moves slowly.

Jack takes his own place next to Dennis, “You want to show your new friend how good your mouth is?” he reaches down, already guiding their face to the edge of the cushions as they nod frantically.

Dennis doesn’t need any encouragement, tugging down his pants and watching. He was barely freed when they take him into their mouth. Eyes fluttering open to make eye contact. The vibration of their moans around his cock was almost enough to make him cum on the spot.

Their tongue presses so perfectly against the underside of him as they bob their head. Dennis combs his fingers through their hair, not quite pulling as they hollow out their cheeks. A soft groan escapes his lips, head falling back as his face scrunches with the effort of not cumming so soon.