The door swung open with a creak, revealing the muscular silhouette of the gym trainer. Sweat dripped from his brow, his chest heaving with each breath. "You're late," he grunted, irritation lacing his voice as he stepped inside, leaving a trail of sweaty footprints on the floor.The twink, barely containing his excitement, closed the door behind them. His eyes darted to the bulge in the trainer's shorts, imagining the musky scent trapped within. "I know, I know," he stammered, his voice quivering with anticipation. "But it's perfect timing, really. You're all... sweaty."The trainer raised an eyebrow, his annoyance mingling with curiosity. "What's your deal with sweat, anyway?" he asked, unzipping his gym shorts and letting them drop to the floor. His underwear, worn for a week as requested, clung to him, damp and stained.The twink's eyes widened as he caught the first whiff of the musky fabric. "It's not just sweat," he confessed, stepping closer. "It's you. Your armpits, your crotch, everything. I want to smell it while you... while you take me."A smirk played on the trainer's lips as he hooked his thumbs into the waistband of his underwear, peeling it away from his skin. He held it out to the twink, who eagerly buried his face in the damp cotton. The scent was intoxicating, a mix of musk and man that made his knees weak."Satisfied?" the trainer asked, his voice low and husky.The twink nodded, his eyes fluttering shut as he inhaled deeply. "More than satisfied," he murmured. "Now, please, fuck me. Hard."Without another word, the trainer pushed the twink onto the bed, his movements rough and commanding. He positioned himself between the twink's legs, his cock hard and ready. With one swift motion, he thrust inside, causing the twink to gasp and arch his back.The twink clutched at the trainer's discarded underwear, pressing it to his nose as the pleasure built. Each thrust brought him closer to the edge, the scent of sweat and sex filling the room. He could feel the trainer's muscles tensing and relaxing with each movement, the heat of his body radiating against his own."You like that, don't you?" the trainer growled, his grip tightening on the twink's hips. "You like being filled up by a real man, smelling my sweat while I fuck you."The twink moaned, his voice muffled by the fabric. "Yes, yes, I love it," he cried out, his body trembling with desire. "Don't stop, please, don't ever stop."The trainer's pace quickened, his cock slamming into the twink with brutal force. The sound of flesh meeting flesh echoed through the room, accompanied by the twink's desperate gasps for air. He was lost in the sensation, the overwhelming rush of being used so thoroughly by the man he desired.As the trainer neared his climax, he pulled out, his cock slick with sweat and pre-cum. He stroked himself, his eyes locked on the twink's flushed face. "Open your mouth," he commanded, his voice thick with lust.The twink obeyed, parting his lips as the trainer aimed his cock. With a final grunt, he came, his release splattering across the twink's tongue and cheeks. The twink swallowed greedily, savoring the taste of their combined efforts.The trainer collapsed beside him, his breathing ragged. "That was... intense," he admitted, a hint of admiration in his tone.The twink smiled, still clutching the sweaty underwear. "Intense is exactly what I wanted," he whispered, his body humming with satisfaction.

The door swung open with a creak, revealing the muscular silhouette of the gym trainer. Sweat dripped from his brow, his chest heaving with each breath. "You're late," he grunted, irritation lacing his voice as he stepped inside, leaving a trail of sweaty footprints on the floor.

The twink, barely containing his excitement, closed the door behind them. His eyes darted to the bulge in the trainer's shorts, imagining the musky scent trapped within. "I know, I know," he stammered, his voice quivering with anticipation. "But it's perfect timing, really. You're all... sweaty."

The trainer raised an eyebrow, his annoyance mingling with curiosity. "What's your deal with sweat, anyway?" he asked, unzipping his gym shorts and letting them drop to the floor. His underwear, worn for a week as requested, clung to him, damp and stained.

The twink's eyes widened as he caught the first whiff of the musky fabric. "It's not just sweat," he confessed, stepping closer. "It's you. Your armpits, your crotch, everything. I want to smell it while you... while you take me."

A smirk played on the trainer's lips as he hooked his thumbs into the waistband of his underwear, peeling it away from his skin. He held it out to the twink, who eagerly buried his face in the damp cotton. The scent was intoxicating, a mix of musk and man that made his knees weak.

"Satisfied?" the trainer asked, his voice low and husky.

The twink nodded, his eyes fluttering shut as he inhaled deeply. "More than satisfied," he murmured. "Now, please, fuck me. Hard."

Without another word, the trainer pushed the twink onto the bed, his movements rough and commanding. He positioned himself between the twink's legs, his cock hard and ready. With one swift motion, he thrust inside, causing the twink to gasp and arch his back.

The twink clutched at the trainer's discarded underwear, pressing it to his nose as the pleasure built. Each thrust brought him closer to the edge, the scent of sweat and sex filling the room. He could feel the trainer's muscles tensing and relaxing with each movement, the heat of his body radiating against his own.

"You like that, don't you?" the trainer growled, his grip tightening on the twink's hips. "You like being filled up by a real man, smelling my sweat while I fuck you."

The twink moaned, his voice muffled by the fabric. "Yes, yes, I love it," he cried out, his body trembling with desire. "Don't stop, please, don't ever stop."

The trainer's pace quickened, his cock slamming into the twink with brutal force. The sound of flesh meeting flesh echoed through the room, accompanied by the twink's desperate gasps for air. He was lost in the sensation, the overwhelming rush of being used so thoroughly by the man he desired.

As the trainer neared his climax, he pulled out, his cock slick with sweat and pre-cum. He stroked himself, his eyes locked on the twink's flushed face. "Open your mouth," he commanded, his voice thick with lust.

The twink obeyed, parting his lips as the trainer aimed his cock. With a final grunt, he came, his release splattering across the twink's tongue and cheeks. The twink swallowed greedily, savoring the taste of their combined efforts.

The trainer collapsed beside him, his breathing ragged. "That was... intense," he admitted, a hint of admiration in his tone.

The twink smiled, still clutching the sweaty underwear. "Intense is exactly what I wanted," he whispered, his body humming with satisfaction.

A twink college student hires a straight muscular gym trainer to fuck the twink. The twink wants to sniff his musky and sweaty underwear while the trainer is fucking him. He requested the trainer to use the same underwear for a week. After a week, the trainer just arrived from gym and he is very sweaty and he has no time to wash up. The trainer is irritated but willing to oblige, having just come from his intense workout session. As the twink closes the door, he reveals his armpit fetish and sweat fetish, explaining that he wants to sniff the trainer's underwear while being fucked. The trainer, straight for hire, doesn't question it further and unzips his sweaty gym shorts, exposing his musky, used underwear to the twink's eager nostrils. The twink gulps as he catches a whiff of the trainer's sweaty, musky underwear. His armpit fetish and sweat fetish urge him to dive deeper, inhaling the heady scent of the trainer's hard work and macho musk. His eyes lock with the irritated, slightly amused expression on the trainer's face as he wordlessly nods his assent to the unusual request. 

Soon, the gym trainer's thick cock pierces the twink's tight hole, the heat of it causing him to groan in pleasure. His hands fist in the sweaty fabric of the trainer's gym shorts, pulling them closer to his face as he rubs his nose against the damp cotton soaked with the trainer's musky scent. The sensation sends shivers down his spine, heightening the sensation of being filled up by the powerful gym-honed body before him. 

As they continue to fuck, sweat glistening on their bodies and filling the room with the musky scent of raw desire, the twink feels a pang of guilt. He knows he's taken advantage of the straight trainer's good nature, but the intense rush of his desires has driven him to extreme lengths. He makes a mental note to tip generously, acknowledging that the thrill was worth every penny.

Intense Arousal: Sweaty Musk Fetish or Sweat-Soaked Desires: Musky Underwear Fetish

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