“I can’t even feel my legs,” Jenny complained, wincing with every step she took.
Jenny was walking in the downtown area of the city she lived in with her friend Damon. Damon was a personal trainer and had just pushed Jenny through a grueling workout; he had been trying to get her more interested in fitness over the past several weeks.
“Pain is a good thing,” Damon winked, flashing Jenny a grin, “That means we’re making progress.” Jenny could feel her cheeks turning red; though they’d never been anymore than friends, Damon was a bit of a flirt and Jenny found herself often flustered around him.
“Woah. What’s that?” Damon pointed, noticing an athletics store he’d never seen before. He frequently spent time in the downtown area, and was surprised that the store could have opened without him hearing about it.
"Do you mind if I stop in quickly?" Damon asked, peering in through the window to take a look at the merchandise. Jenny glanced at her watch and nodded in agreement; it was getting late, but she could spend a little bit more time with Damon before heading home for the night.
Once they were in the store, Jenny looked for the women’s section but was surprised to see that there was only men’s clothing on display. As she walked through the aisles to find the women’s section, one of the mannequins caught her eye. The mannequin was wearing a pair of black silk boxers; the material shimmering in the overhead lights of the store. Jenny grabbed a pair off of the shelf, feeling the soft material in her hands. She thought they’d be comfortable for her to sleep in.
“Find something?” Damon asked, approaching Jenny. He had a small pile of workout clothes slung over his shoulder.
“These look nice, but I’m pretty sure they’re for men. I think this whole store is for men,” Jenny frowned, sadly setting the boxers back down on the shelf.
“Who cares if they’re for men? If you like them, you should get them. I’ll even buy them for you. Your reward for making it through my rigorous workout at the gym today,” Damon offered, grabbing the boxers and adding them to his own pile of clothes.
After checking out, Damon reached into his bag and pulled out the boxers, handing them over to Jenny.
“You down for another workout session tomorrow morning?” Damon asked eagerly.
“We’ll see if I can even walk tomorrow morning,” Jenny laughed. Truth was she hated working out, but she felt like she never got to see Damon anymore with their busy work schedules. At least this way they were guaranteed to spend some time together.
“No pressure either way,” Damon replied, sounding a little deflated. “Just shoot me a text if you feel like working out in the morning and I’ll pick you up on my way to the gym.”
Jenny and Damon said they goodbyes before Jenny made the short walk back to her house. Feeling exhausted, she went straight to her room to get ready for bed. After a moment of hesitation, Jenny decided to wear the new boxers to sleep along with an oversized t-shirt from one of her old boyfriends. With a yawn she laid in her bed, not noticing the faint flow emitting from the boxers.
Jenny’s feet began to toughen, becoming calloused and weathered while growing to almost twice their normal size. The bright blue nail polish she had been wearing vanished as little hairs emerged from her toes. Her legs also became thicker, her calves and thighs bulging with muscle as thick brown hairs sprouted from them. Her hips narrowed while her butt tightened, losing its feminine curves and roundness.
The material of the boxers felt great against her skin. Jenny felt amazing in the boxers, reaching down to stroke herself through the fabric. The feeling was incredible, overwhelming Jenny with pleasure. Jenny was so aroused she didn’t notice as her clit started to swell, bulging into a long thick shaft. The shaft formed a large mushroom head, finishing its transformation into an erect penis. A large set of testicles dropped from her pussy before it vanished, her new balls pumping testosterone through her body.
Continuing to rub her cock in ecstacy, the changes continued to move up her body. Jenny lost her slim hourglass figure as her stomach bulged outwards, forming into a six-pack of abdominal muscles. Jenny moaned as her shoulders expanded, growing broader. Jenny’s large breasts started to retract into her chest, her nipples growing smaller and losing their sensitivity. Jenny’s breasts continued to deflate until she was completely flat chested; a pair of thick, masculine pecs bulged out from where her boobs had been.
The changes reached her neck, her throat thickening as a prominent Adams apple bulged from it. Jenny let out a loud manly grunt, male hormones coursing through her body. Her arms and hands bulked up as they grew thick with muscle, veins coursing down her newly formed biceps and triceps. A thick layer of hair covered her arms as her fingers thickened. Her manicured nails grew rougher and lost their nail polish.
Finally the changes reached Jenny’s head and she felt herself explode into an orgasm, her new cock cumming for the first time. Her smooth round face began to harden as her jawline squared and a thick stubble grew in. Her face tingled as it changed; her nose grew larger, her lips thinned and cracked, her eyebrows becoming thick and bushy. Her long blonde hair darkened to a deep brown as it retracted into her scalp, leaving it short and messy. The changes finalized as Jenny’s body elongated, growing to 6’1” from her previous height of 5’4”.
Jenny, now Jensen, peacefully drifted off to sleep, unaware of their transformation into a hunky man.