fitness swap

sexy time oh yeah

The proposition was absurd. Preposterous. Delicious. Kasey, sculpted goddess of the fitness world, stared at the unassuming man across from her in the quiet café. He’d just explained, in a calm, logical tone, that he could become her. That he wanted to be her, for a week, while she took a secret, desperately needed vacation. He’d shown her a flicker of his power—his hand softening, fingers lengthening, nails glossing with her signature shell pink. The shock had been so complete it had bypassed denial entirely.
“A week,” she whispered, her voice hoarse. The pressure of the brand, the constant content, the aching need to just… stop… it was a tidal wave he’d somehow seen from shore. “And you’ll handle everything? The posts? The appearances?”
“Flawlessly,” he promised, his eyes holding a strange, empathetic light. “I’ve studied you. I understand the performance. You get to disappear. No one will ever know.”
The bag he’d given her was heavy with cash and a first-class ticket to Bali. The bag she’d given him was lighter: a week’s worth of her most intimate wardrobe. The deal was struck in a dizzying haze.
Now, alone in the private locker room of her exclusive West Hollywood gym, he unzipped the bag. His heart—no, Kasey’s heart—hammered against ribs that were now delicate and narrow. The shift had been a total, cellular submersion. He’d chosen this room for its full-length mirrors, and now he stood before them, utterly naked.
Oh.
The breath left his—her—lungs in a soft, feminine sigh. He’d seen the body in a thousand videos, but feeling it was a different universe. He raised his hands, turning them over. Slender wrists. Long, toned arms with defined triceps that cast soft shadows under the LED lights. He cupped his chest, and a jolt of pure, electric sensation shot through him. Her breasts were full, heavy in his palms, the nipples already pebbled tight from the cool air and the sheer novelty of the touch. He rolled the stiff peaks between his thumbs and forefingers, a low moan escaping Kasey’s throat. The sensation was direct, a live wire of pleasure connecting his fingertips to his core.
He turned, looking over his shoulder at the reflection. The famous “bubble butt” was a work of art. High, round, impossibly firm yet yielding when he squeezed a handful. The dip of her waist was severe, an hourglass cinched to its most extreme ratio. He ran his hands down the sleek curve of his back, over the two perfect mounds, gripping them, feeling the powerful muscle beneath the soft skin. A heat was building low in his belly, a wet, unfamiliar ache between his thighs. He was already slick.
Time to dress.
He pulled out the outfit: a scrap of neon green fabric that was the thong, a matching sports bra designed for maximum lift and minimum coverage, and a pair of sheer black leggings that promised to be a second skin. He stepped into the thong, pulling the string high, feeling it nestle into the cleft of his new ass, a constant, tantalizing pressure. The sports bra was a fight to get on, compressing his chest upward, creating deep, tempting cleavage. Finally, the leggings. He shimmied into them, the material whispering over his skin, tightening over every curve until he was sheathed in glossy black.
He turned to the mirror again.
God.
The leggings were sheer enough to show the hint of the neon green thong beneath. They clung to every contour, making his ass look like two perfect, ripe melons held in a tight net. He arched his back, pushing it out, and the image was pure, undiluted sexuality. He ran his hands over his own hips, his waist, cupping his breasts through the bra, his breath coming faster. The body was a weapon, a playground, a temple. And it was his for a week.
The drive to Kasey’s modern hillside home was a blur of new sensations—the way the steering wheel felt in smaller hands, the brush of leggings-clad thighs together. He used her thumbprint to enter.
“Babe? That you?” A male voice called from the living room. Liam. The boyfriend. A personal trainer with a jawline like granite and the clueless, devoted eyes of a golden retriever.
“Yeah, just me,” he called back, pitching Kasey’s voice perfectly, a little breathy.
He found Liam sprawled on the huge sectional, watching a game. Liam looked up, smiled, then did a double-take. “Whoa. New outfit? You look… intense.”
“Feeling intense,” he purred, walking slowly into the room. He saw Liam’s eyes track him, saw the moment his boyfriend’s gaze stuck on the ass showcased in the sheer leggings. The shifter felt a surge of power so potent it was dizzying.
He didn’t say another word. He simply climbed onto the couch, straddling Liam’s lap in one fluid motion. Liam’s hands came up automatically to rest on his new hips, a familiar, trusting gesture.
“Kase, what’s—”
He silenced him by grinding down, a slow, circular roll of his hips. The friction through the leggings was incredible; he could feel Liam hardening beneath him, could feel his own wetness spreading. He took Liam’s hands and placed them firmly on his ass, guiding him to squeeze.
“Just… touch me,” he breathed into Liam’s ear, using Kasey’s voice but with a hungry edge she probably never used. “Touch me everywhere.”
Liam, ever eager to please, obeyed. His big hands kneaded the firm globes through the leggings, then slid around to the front, dipping under the waistband of the sports bra to fill his hands with her breasts. The shifter threw his head back, a genuine cry of pleasure tearing from him. The dual sensation—the rough grip on his ass and the thumbs circling his nipples—was overwhelming. He ground down harder, faster, chasing the feeling.
“Fuck, Kasey,” Liam groaned, his hips bucking up.
“Want you inside,” the shifter panted, scrambling off just long enough to yank Liam’s shorts and boxers down, freeing his thick, eager erection. He turned, presenting that incredible ass to Liam, looking over his shoulder. “Like this. Now.”
Liam needed no further encouragement. He guided himself, and the shifter sank down onto him in a reverse cowgirl, a slow, exquisite descent that made them both gasp. Full. He was so full. He began to move, rising up until just the tip remained, then slamming back down, setting a brutal, demanding pace.
His hands were everywhere on his new body. One hand clutched at his own breast, pinching the nipple hard through the bra. The other reached behind, fingers digging into the flexing muscle of his own ass, pulling the cheek aside as he rode, giving Liam an even deeper, more obscene view. The slap of skin on skin, the wet sounds of their joining, Liam’s ragged groans—it was a symphony.
The climax built like a tsunami. It started deep in his core, a coiling, tightening heat that spread through every limb. His movements became erratic, desperate. “I’m gonna… Liam, I’m gonna…”
“Me too, baby, me too!” Liam choked out, his hands gripping the shifter’s hips like vices.
The shifter came with a shattered cry, his back arching, his internal muscles clamping down around Liam’s length in rhythmic pulses. The pleasure was blinding, a white-hot detonation that originated from that penetrated, claimed center of him. He felt Liam erupt inside him a second later, a hot, pulsing flood that triggered another, smaller aftershock of pleasure. He collapsed forward, onto the couch, feeling Liam still throbbing within him, both of them spent and slick with sweat.
Liam nuzzled his neck. “That was… different. Amazing.”
The shifter, still riding the dizzying high of foreign orgasm, just smiled into the cushion. You have no idea.