Your hair curled around your face in sweaty whisped tendrils as you wrestled Loki on the mat. Training days were grueling and your body had alerted you to that as you were starting to get fatigued. Your body ached, especially your thighs. 

Loki pinned you to the floor once again and a cheeky smile spread across his face. 

“You are powerful, darling. But not strong enough to beat a god.” He snarled playfully. 

You huffed, breasts heaving up and down with your deep breaths. You bent forward, stretching your hamstring in preparation to attempt, yet again, to take your teammate down. 

You leaned into your frontal stretch, touching your toes with your eyes closed. Loki half-scolded himself for stealing a glance down your sports bra.

Though he would never admit it, since you joined the team he had had more than one fantasy about that body of yours. You curved in all of the right places. Forbidden thoughts raced through his mind more often than not after training with you. Loki would conjure images in his mind after conditioning with you. What it would be like to be intimate together. If the showers were empty, it wasn't uncommon to be found pleasuring himself to the rendering of you in his psyche.

It wasn’t all physical, though. Your quick wit made him genuinely smile. He admired your intelligence and influence being a new Avenger. You had such a beautiful soul. And for the most part, he trusted you. Not once were you judgmental of his past and you were instant to embrace him. You would jest, but did not joke at his expense like the other Avengers would. You were valuable to him. More than a Midgardian sparring partner, to be sure. He could never confess this attraction, fearing to lose his friendship with the closest person to him.

You did one more long stretch beyond your feet, hands splayed on the ground, breasts pushing outward. Loki noticed the periphery of one of your nipples dipping out from the top of the of your bra, almost to the center of it, forming a rose colored peak. 

Seeing such a private part of you caught him off guard. He blushed fiercely and pretended to stretch his arms in front of himself as he briefly looked away.

You softly moaned as you arched you spine into a neutral position and hoisted your bra back up, your breasts jiggling as you secured them in place. 

You peered up at Loki through spent eyes. “Ready?”

Loki was still enchanted having seen a small glimpse of you. He felt guilty for gazing upon you without your knowledge. “Y/N, wait-" he started just as you sprinted full force at him. You knocked him down in his moment of unsteadiness. The pair of you fell back onto the mat in a tackle. You straddled Loki's hips and pinned them to the ground as your forearm held his sternum tight to the floor. You exhaled in relief, finally defeating him in your playful competition, soft eyes - and supple cleavage - mere inches from his face.

Loki gasped hard, admittedly unprepared for the harsh blow to the ground. He gaped at you, restraining him with might between your sore thighs, sweat beading around your collar bones. His eyes flickered to your bosom towering over him, watching your erratic breath from physical exertion. He felt a tightness in his stomach and began to panic as he felt his cock twitch. He hoped you didn’t feel it. 

You did. 

It throbbed again, and you looked at Loki wide-eyed in disbelief. The God of Mischief, your best friend and colleague, pinned beneath you, growing hard. 

Aware of your gaze he scoffed in embarrassment and crimson crept up his cheeks. You fell on your back as he rolled you to the side, off of him. 

Putting his hands on his head, elbows on his knees, he gently spoke. “Y/N… I…” He was at a loss for words. Abashed tears welled in his eyes. “What you felt… it’s just…” he took a moment to compose himself.  “When you bent over, I saw, well, more than you had intended for me to see… I’m so sorry Y/N…” he whispered at the end. His lashes flickered downward, looking anywhere but at you. 

Your heart fluttered at his admission. Withdrawing his hands from his face, you could see his genuine worriment. Biting your lip, you turned his cheek, forcing eye contact. Taking a deep breath, you spoke just as honest and vulnerable as he had been.

“Loki… it’s okay… I would let you see all of me if you wanted to…” 

His mouth parted slightly in anticipation of your next words. Lust filled the air dense as fog. 

You grabbed his hand and gently guided it to your chest. 

“May I?” You lulled, handling his flesh with care.

He nodded, pupils dilating. 

You softly placed Loki’s hand on your breast. You observed as his eyes devoured you. You held a grip on his knuckles, urging him to take over. 

He lifted his other hand, following your lead, and started to caress your mammae, cupping them, and swiftly massaging them in circles, palming your mounds.

You tilted your head back and moaned. It felt glorious. You always did have an attraction toward Loki, but this, having him touch you with the look of adoration in his eyes, was stirring something more inside of you. You looked down at Loki’s obvious arousal. His eyes lingering on your chest - which had been pulling his orbs like a magnet this evening. 

You had an idea. 

“Loki… fuck my tits…” you cautiously offered to him. The situation seemed so taboo, but you wanted this, wanted him, and seeing his eyes glued to you gave you the confidence to propose this in the heat of the moment. 

“What?” His eyes snapped to yours, locking concentratedly.

“Fuck my tits Loki… I want you…please…” you continued. You were nervous now, unable to read his expression.

His brows furrowed. “My darling… I’ve, I have never done that… I..” he trailed off. 

“I will help you, Loki. If you want this?”

He nodded. “I want this. I want you more than anything in the realms”.

You laid back on the mat and instructed Loki to put his legs on both sides of you. You carefully pulled down his sweats to release his cock, already glistening at the tip. 

You wrapped your hand around his heated shaft and lifted the underside of your brassiere. You slid his head in and aligned him perfectly center between your mounds. You grabbed his ass and nudged him to move. 

Loki let out a stifled moan as his dick glided between your supple breasts. He rhythmically started driving into the crevice, watching his prick come out of the apex of your bra, bouncing your bountiful cleavage. 

He started thrusting faster now, hesitantly eyeing the training observation window. You took note and reassured him.

“Nobody will see, Lokes. I wouldn’t care even if they did. Keep going, Prince.” You sung gently to him.

He hissed and spasmed from his core at your words. Prince. Your soft skin enveloped his manhood so well.

You flipped your bra up on to your collarbones, exposing your entire chest. You pushed your boobs together as tight as you could, nipples hardening as you felt Loki’s shaft pulsate. His eyes darkened, eagerly taking in this new scene. 

“Let me taste you Loki…” The words rolled off of your lips.

You opened your mouth offering an “o” shape for his tip to enter. He slid between your tits, gliding his end into your mouth. 

“Ah Norns, Y/N…” Loki growled in a low timbre.

He rubbed against you quicker now, a fury inside of his veins and heart, quickening his oncoming orgasm. 

His eyes met yours as his knob slid in once again. This was more than just lust, he acknowledged in his mind. He loved you. He was madly in love with you, his best friend. 

“Fuck, Y/N, I’m close… Where.. where can I release…” he panted as he gyrated into your breasts. Your tongue flicked the tip of his penis as to offer a place for him to cum. 

“Y/N…” he hissed multiple times in silence before letting out an involuntary mewl, orgasm washing over him. He came in your mouth, bucking and convulsing. Loki pulled out with one more spurt shooting across the nipple he had stolen a glance at earlier. He watched as you swallowed with glee in your eyes.

“How was that?” You questioned from underneath him. 

He tenderly handled you, supporting your neck as you arose and settled next to him in a seated position on the mat.

“If that’s how good your breasts feel I can’t imagine how divine the rest of you feels, my darling.” 

Your hand touched his softly, rubbing a circle on his knuckle. 

“Why don’t you find out?” You purred into his ear.

Loki pulled you on to his lap, searching your eyes for deception. He saw many things in your eyes, but deception was not present.

Gracefully, he laid a most loving kiss on your lips. Securing your legs around his hips, he stood and maneuvered your back to rest against the glass. Pinning your hands above your head with one hand, he used the other to strip away both of your remaining clothing with a flash of emerald. Your ass pressed against the training window as Loki prepared to enter you. You clutched the nape of his neck, raven curls slick with sweat, holding him with an unspoken devotion. This was your favorite day of training.

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A/N: Thank you for going on that journey with me. Writing is hard! Please forgive any errors!