Rachel exhaled as she set down her purse and gym bag on the bench. Work had been non-stop today, and she was relieved to finally be able to de-stress at the gym. She stretched her neck as she undid the buttons on her white cotton shirt and set it on the bench next to her bags. She unzipped her grey pencil skirt, and let that fall to the floor, enjoying the feeling of air on her skin. She took a moment to put her hair in a ponytail before opening her gym bag. She took out her sneakers, and as she set them down, noticed a note rolled up inside the left one. Rachel picked it up and unfolded it as she absentmindedly stepped out of her high heels. She recognized Ken's handwriting:
Rachel,
I have a dare for you, if you're brave enough. Wear only what is in this bag for your workout today, and you must include the following in your session:
Squats
Thigh Adductor machine
Partner stretch
Complete this challenge, with evidence, and dinners are on me for a week. Good luck!
By the time she finished reading through the short note for a second time, her heart was already racing. She had mentioned a couple days ago that she likes getting checked out at the gym, and I guess he wanted to kick that up a notch. Intrigued, she reached into her gym bag. First, she grabbed one of Ken's tank tops. It was about 2 sizes too big, white, and had giant arm holes that came down almost to her waist. The next item in the bag was a pair of her white boyshort underwear, which if anything were less sexual than what she usually wore under her gym shorts. When she reached back in the bag, however, her heart skipped a beat. It was empty. No shorts, no sports bra. Nothing. She picked the tank top back up and shook it out, making sure nothing was caught inside of it. But no, Ken had packed her only sneakers, underwear, and a baggy tank top.
She couldn't do this. No way she was going to go work out in front of total strangers wearing next to nothing. But even as she was telling herself this, she knew that it wasn't true. Just thinking about it had awakened the exhibitionist inside her, and she knew that it wasn't going away anytime soon. Rachel removed her bra, set it on the bench, and pulled the tank top over her head. Without stopping to think, she removed her thong and replaced it with the white boyshorts, slid her sneakers on, and locked everything else away in her locker except for her phone and headphones. On the way out of the locker room, she stopped in front of the mirror. Turning slowly, she saw how much she would really be on display. The sides of the tank top were very open, and you could see the side of each breast even while standing up. The bottom of it had been cut, and so even though it was big on her, it fell just below her waist. As she turned, she could see that the bottom of each cheek peeked out from under the white cotton fabric of her underwear. She tried to pull them down a bit, but it didn't do much good. She smiled at this, took a picture of her reflection, and headed out of the locker room.
She had braced herself for the worst, anticipating an overreaction from the entire gym as soon as she opened the door. However, as she walked out the door and up the stairs to where the treadmills were, things seemed almost normal. She got some stares from most of the guys and some of the girls that she passed, but this was nothing new. They may have held their gaze a bit longer than usual at her bare sides or barely covered ass, but Rachel enjoyed that. She was a little bit flustered, but decided to stick with her usual routine as best she could - treadmill, weights, and then stretching. It was slightly less busy than usual today, and all but two treadmills were open. She stepped onto the one that was two down from a guy she had seen there before. His name was John, and they had spoken a couple of times. He looked over as she put her headphones in and started her music, and she gave him a small wave. He smiled, and let his eyes wander down her exposed side before he waved back. He spent a lot of time at the gym, and she was sure he had caught her checking him out on a few occasions.
Rachel started up the treadmill, and as she waited for the machine to get up to speed, she sent the picture of herself in the locker room to Ken with the text "Challenge Accepted." As she began to run, Rachel became acutely aware of what a difference a sports bra makes. Even though her small, firm breasts didn't bounce enough to cause her discomfort, there was much more movement than she was used to, and the fabric rubbing against her erect nipples gave her goosebumps. Additionally, each step caused the boyshorts to ride up, exposing more of her firm ass. At first, she tried to straighten it out, but soon gave up. By the end of her two mile warm up, half her ass was showing, and she was beginning to sweat. She shut the machine off, and wiped her face on her shirt. Only after seeing John staring at her did she realize that in doing so, she exposed her left breast to him. She gave him a wink, adjusted her outfit back to cover as much as it could, and headed to the weights.
People had started to notice her, and she had begun to develop a bit of an audience as she crossed the gym to the open squat rack. She added weights to the bar, just like any other day, and took her position under it. With her feet set shoulder width apart, she lifted the bar off of its rest, took a small step forward, and bent her knees into a squat. Looking in the mirror, she could see the eyes of three men behind her follow her as she dipped towards the floor. She paused at the bottom of the squat for a few seconds, and as she stood back up, her panties disappeared between her cheeks. She couldn't stop after just one rep, and each time she did another, the fabric slid further between her lips and rubbed against her rapidly swelling clit. Between this physical stimulation and the excitement that she always felt when being watched, Rachel was struggling to focus. She could feel herself getting wet, and when she looked in the mirror at the bottom of her next squat, she could see a dark spot growing between her legs. She grabbed her phone, and with her quads burning and pussy tingling, sent another picture to Ken.
After putting the bar back on it's rests, Rachel walked slowly over to the next machine, adjusting her panties as she walked. The stares that she was getting made her skin tingle, and she didn't want to rush it. She made sure to bend at the waist as she set the weights for the thigh adductor, and swayed her hips a bit, making sure to attract all the attention she could. She stood back up slowly, running her fingers up her smooth, glistening legs, and took a seat on the machine. The cool seat surprised her as her bare cheeks rested on it, and it put a smile on her face. Rachel took a deep breath, and spread her legs rest in position on the outside of the pads. Sitting there in the gym, legs spread wide, she looked up to view herself in the mirror, and was overcome by a mix of panic and excitement. Her white tank top had become damp, and you could see two dark circles where her nipples stood erect under the cool fabric. This was tame, however, compared to what she saw when she looked lower. Her panties were completely soaked, and the white cotton had become nearly transparent. You could see the color and shape of her swollen pussy, and with her legs spread so wide, she was certainly on display. Her inner thighs glistened with her juices, and it took every bit of her self restraint to stop her fingers from pushing inside her. Forcing herself to continue her workout, she squeezed her legs together, held them there for a few seconds, and then slowly let them return to their initial position. By the third rep, the fabric had began to bunch, and her pink lips showed on either side of the soaked white strip. Struggling to break her trance, she looked up from the mirror, and saw John curling dumbbells and watching her. He casually looked away when she turned her head, but she knew he had a clear view of her side and breast from his angle. Rachel got an idea.
"Hey John, come here a sec. I have a favor to ask you." she said with a mischievous smile. Her heart was racing already, and increased as he put his weights down and walked over. He politely stood to the side of her, staring at his hands awkwardly. "Hey Rachel, whats up?"
She did one more rep and replied "Come here where I can see you." Acting as if she couldn't turn her head to look at him while working out, she was in fact just getting him to stand directly in front of her open legs. He took two steps over, and his mouth dropped open nearly as wide as her legs were spread. His eyes locked between her legs, and Rachel could feel herself becoming even wetter from the attention. With a grunt, she did one more rep, squeezing her thighs together before letting them slowly open again. Feeling emboldened by her desire, she grabbed the bottom of her tank top and used it to wipe her face, being sure to lift it high enough to reveal her perky, dark nipples to him. Upon lowering her shirt again, John seemed to become aware of himself, and closed his mouth. It was obviously difficult, but he pried his eyes back up to meet hers.
Rachel smiled up at him, legs spread wide. "I'm so tight, I need help stretching. Do you think you could do that for me?"