Terri's legs pumped faster as she increased her speed. Her breaths came quicker, her muscles burned in protest, but she pushed through it, a determined grimace on her face as she picked up the pace. She could see herself in the reflection of the wall length mirror, but it barely registered to her focused mind.
Each impact on the treadmill was its own victory, each planted foot another step toward her ultimate goal of being able to run the half marathon she always wanted to participate in. Just a few more minutes and she could be done she told herself, but until then, she soldiered on.
Justin finished up another set and let his legs compact downward as the weight pushed him into a squatting position while his body was set at a forty-five degree angle. The leg presses were making his lower half hurt, his joints groan, but every week he could do a little more, go for a little longer, so he knew it was worth it. As he rested, his head flopped to the side and that's when he caught a glimpse of the woman on the treadmill. She was running in front of the mirrors, so he could check out her taught rear and her pretty face all in one go. Her chest was compressed by her sports bra so he couldn't get that good a view of her breasts, but they didn't appear all that large anyway. Still, her small, rounded ass looked good in the cotton shorts that hugged her body. He could see the small of her back, sweat beading and trickling down her exposed skin as her pulled back pony tail flopped side to side behind her.
He was so caught up in watching her that he didn't really notice that his workout shorts were a bit tighter until someone kicked the metal bar next to him. "Dude, you just gonna sit there or can I use it?" a young guy asked, looking irritated at Justin for wasting his time. Justin looked up at the kid, then over at the woman and saw that she was getting off the treadmill.
"Yea, sure," Justin said distractedly, getting up and wincing as his knees creaked in protest. He felt more hot than usual, and, while staring at the woman, flapped his shirt to get some circulation.
Terri looked over and admired the fit, if a bit thin, man obviously watching her. She'd seen him in the mirror and initially rolled her eyes, but between the high of exercise and his sleek physique, she could feel an excited tingling deep inside her, could feel arousal building. She rubbed her thighs together and quickly turned away as she realized the man was staring at her back. This gave Justin a good view of her ass again, and saw a little extra swaying of her hips as she started off toward the showers. That was a good idea he thought, he might as well get washed off before he headed back home to rest and work on sending out some emails for work.
They reached the showers around the same time, since Terri had stopped to take a swig of water, secretly waiting for the nameless guy to reach the showers. Her excitement had quickly cascaded in her, her mind getting fuzzy as desire welled up in her and became a driving force.
When Justin walked past her, a falter in his step as his eyes strained out the sides to catch a further glimpse of the rather attractive woman staring at him, he felt a bit let down that he didn't work up the courage to say anything as he pushed the door open and stepped inside the empty showers. On a Sunday, hardly anyone used the gym, especially not so late in the day with the skies beginning to redden as night fell.
The last thing he expected was to hear the door creak a second time before it even closed. It had started its quiet shushed trip back toward the frame when the hinges shifted direction. When he looked back, he saw the woman rush him and opened his mouth to tell her that she was in the wrong room, but never managed to get out a word before her lips smashed into his and her arms wrapped around his body, pulling the two of them right up against each other in a passionate embrace. Not one to complain, Justin kissed her back with just as much fervor as she gave him, his arms slipping around her waist, feeling both the heat from her body and her heart pounding hard enough to feel through both of their clothes. Any rational thought got swept away as lust took over.
It didn't take much time for his partially erect cock, earlier hidden by his baggy shorts, to get up to full capacity, the hot length pressed against his leg by the woman's grinding. They stepped backward together, until his back was against the wall, their lips all over each other, tongue shoved down the others throat, first in one mouth, then the other, a battle as they danced with one another. Suddenly he felt a hand sliding down his back and shakily fumbling between them until it found his erection and gripped it hard, the tips of her short nails digging into the sensitive skin. He tensed in surprise, the cacophony of pleasure suddenly injected with a bite of pain. Following her lead, one of his hands traveled along the curve of her ass, feeling just how firm it was and admiring it just as she was admiring his length and girth, before slipping down the front of her shorts and finding her panties absolutely soaked at the front. His fingers worked inside them, and then inside her, eliciting a high-pitched moan that went into his mouth as his fingers easily slid deep inside her drenched sex.
"Fuck me," she gasped.
"What?" he replied in a daze. Her hand was starting to tug on his length as she fought to get it out of his pants. Terri never wanted something so badly in her life.
She pulled back a bit and looked up into his dark green eyes, a fitting companion to her light blue ones, complimentary pieces of the same set. "I said fuck me. Now," she added urgently. Despite the slight confusion in his eyes, the man nodded enthusiastically.
Finally she got his member out of his pants and stroked his length as she moved it toward her ready slit. But he had his fingers buried inside her at the moment and she squeezed his shaft harder to give him a hint. He received it loud and clear and slipped his fingers out, pushing her shorts and panties down with both hands enough to expose her bottom half to the cool air. Then he took the initiative and moved her forward into the door, her back hitting it and their bodies pressed even closer than before, lips once again locked and kisses coming hungrily. "Fuck you," he whispered, and tried to shove himself inside her, but the tip missed the first time, hitting the smooth pubic mound just above first before it found its mark and slid in deep.
Both of them gasped into the others' mouths, awash in hot, electric pleasure as his shaft pushed in deeper and deeper until his hips met hers. He could feel her silken walls slick with her need, making it easy for him to push into her waiting folds. Drawing back, he began to pump into her in quick, short bursts, grunting as one hand went to her neck to cradle and hold her head close to his for the kissing, the other on her hip, sticky fingers partially wiped off on the soft fabric.
As the burning shaft plunging into her, Terri gave into her craving, partially paralyzed by the ecstasy surging through every nerve in her body, overloading her biologic circuits. She exhaled with every thrust, rocking her hips without thought against his movements, their rhythm synced so easily. Her hands went to his ass, pulling him deeper into her, wanting, needing, every inch of his sexy cock. She could feel the veins pulsing on it, ridges rubbing into her walls, the feel of hot flesh against soaked folds.
Terri hooked one leg around the stranger and felt him slide in deeper. Her short nails dug into back as she clung onto him, her chest heaving, her mind buzzing with pleasure. She pulled her face away and pressed it into his warm, sweaty neck, sucking at the salty skin and biting into it as he started to drive into her a little harder. Everything else faded away for a moment, just the two of them in this one moment was all she could focus on, and that was all right with her.
Justin felt the same, and enjoyed it even more when he could get deeper into her, with only the base of his shaft missing out on the fun. She was so wet, so easy to fuck, and she drove him wild. The sharp pricks of pain on his back blended in with the pleasure, and even as her teeth sank into his neck he could only feel it adding to the experience. Her tongue flicked across his skin. For both of them, every little touch fueled their intense, primal meeting.
Justin actually felt it first: the mounting pressure growing in his groin, and tried to hold it back a little bit to keep going. Terri wasn't far behind. A ball of concentrated energy was starting to spread out from her hips, and, like her new friend, she tried to hold back the floodwaters. The net result was a few more seconds, a handful of hard pumps, and then an explosion of mind-boggling pleasure.
Both cried out, Terri into Justin's neck, and Justin into the top of Terri's head, where he'd placed his mouth to try and keep quiet, which he honestly wasn't doing that great of a job at. Both of their bodies shuddered against the other. Her walls squeezed his cock, and his cock twitched as it shot its sticky load deep into her pussy. "Yes, yes, yes!" she screamed, her nails dragging down his back frantically. Even through the shirt they left long, red scratches. Neither of them noticed.
Justin could only murmur curses in rapid succession as his mind went blank, the plug pulled from his thoughts for a brief moment as he felt the come surge through his shaft and into this total stranger. His hips continued to jerk involuntarily as his orgasm died down, both of them panting hard as the warm fuzzy feeling subsided. Terri's body gave a couple extra shudders as the throbbing mass of hot flesh continued to jerk back and forth inside her, sloshing around the mixture of juices from their combined climax.
