This is a stroke story. It's ridiculous and unrealistic. No one is worried about STDs, sizes are exaggerated, everyone is bi (or at least the women are) and people can fuck for hours without chafing.
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Alyssa, Melanie, and I walked out of room we'd been using for our fuckfest into the gym. It had been shut down for the evening, so it was mostly dark. The only sound was the quiet hiss of the ventilation system. As we walked into the main room, the motion-activated lights flickered back on. Our school had a fantastic gym; it was filled with weight benches, fitness machines, and free weights. Normally, it would be open, but Melanie filled us as we walked down the hallโshe worked at the gym as a personal trainer and had been the only employee around when Alyssa and I got started. She heard Alyssa's screams while in the throes of a powerful climax and came to investigate. Once she saw that her roommate was fucking a man with a 13", wrist-thick cock, she decided to get some of that action herself. She told everyone that there had been a dangerous spill of some of the pool chemicals stored in the locker room and that she needed to close up until a clean-up crew could get in.
After everyone left, she slipped into the room while Alyssa and I were otherwise occupied. Melanie watched as I fucked her roommate like an animal, holding her in the air and bouncing her on my cock, until she came repeatedly (making quite a mess as she did; turns out Alyssa was a squirter) and until I whitewashed her face with my jizz. Then she joined in.
Now I was going to take both girls' assholes. If anyone had been in the gym, they'd have been a bit shocked to see us. I was naked except for my shoes (which may have looked silly, but I wasn't thinking about appearances at the time) with a naked woman on either arm. Alyssa was at my left; she was a head shorter than me, with long dark hair, fair skin, a gymnast's build, great leg, and an ass that made you want to fall to your knees. Melanie, her roommate, was a tall, tanned blonde gym rat with just the right amount of muscle and sporting a pair of double-D tits that drew attention from almost everyone. There were traces of silvery sperm all over both girls, small strands that hadn't been cleaned up from my voluminous ejaculations. Luckily, no one was around to see usโthough if anyone reviewed the security tapes, they might have gotten an eyeful.
Alyssa, Melanie, and I went over to the free weights. A dozen or so benches were scattered around the floor. I sat down on one of them with my legs spread. I patted my thighs, signaling for the girls to sit down. They did, Alyssa on my left and Melanie on the right, my cock rising up between them like a tower. I took Alyssa's chin in my hand and turned her face toward mine. Her lips were slightly parted, and I planted a long, slow kiss on them. Then I did the same to Melanie while Alyssa looked on. After we broke the kiss, I leaned back slightly and nudged Alyssa and Melanie toward one another. The girls got the message and kissed as well. Melanie's tremendous tits pressed against Alyssa's. I joined back in, turning it into a three-way kiss that lasted for a long, passionate moment.
When the kiss ended, all three of us were flushed with excitement and breathing heavily. I spread my legs a bit wider, and Alyssa and Melanie slid off to kneel between them. Working in unison, both girls started to rub my inner thighs, working their way toward my erect shaft and heavy balls. Each girl took one of my plum-sized orbs into her hands. "They're so heavy, Lyss," Melanie said.
"I know, Mel. Isn't it amazing? It's like he hasn't cum in months." Alyssa caught my eye and gave me an evil grin. "Why don't you suck on them for a while? Help him build up his next load, make it thick and hot. I bet if you do a good job he'll let you eat it."
Melanie nodded and lowered her head to my crotch. She took up one of my nuts in her mouth. Her cheeks hollowed as she sucked on it, bathing it in her saliva. Alyssa was still holding and caressing my other testicle in one hand. She grabbed my cock in the other and started stroking it. She looked down at Melanie. "You know, if you want to be worthy of his next load you should really work on both of these balls. You don't want to play favorites." Melanie moaned gently into my sack and stopped sucking, opening her mouth as wide as it could go. Alyssa carefully stuffed my other testicle into Melanie's mouth, filling it completely. Melanie's jaw was spread wide and her cheeks puffed out slightly. Her lips formed a tight seal around my scrotum, and while she couldn't really move her tongue around too much she tried gamely to get it into the action.
All the while, Alyssa was stroking me and talking to her roommate. "I've always thought you would make a good ball warmer. Do you like this? Do you like making sure that his balls are full of rich delicious spunk?" Melanie moaned wordlessly in reply, her mouth too full to speak. "Good," Alyssa said, "because I want you to stay down there and keep his balls from getting lonely while I take care of his cock with my ass. And when I'm done if he thinks you did a good job you can clean us both after he's drained his balls in me."
My dick throbbed in Alyssa's hand at that point. I knew I was going to get a shot at her ass, but that didn't make the concept any less appealing. Alyssa's ass was fantasticโa firm little bubble, toned from her years of dance and gymnastics. If it was even half as tight as her cunt I'd have to work to get my 13" cock in, and she'd drain me dry with it given half a chance.
Alyssa stood up, facing toward me. She gently pushed my upper body back a bit, making me lean out over the edge of the bench. She straddled me and reached back for my dick, guiding it to her tight rear entrance. She sat down a bit, pushing my cock head against her ass. "Uh oh," she said. "We let your cock dry out too much. I think you need some lubrication if you're going to fit in me." She moved her hips slightly and sank down, letting my cock slide into her pussy in one smooth motion. Melanie continued to slurp noisily on my sack as Alyssa slid down my shaft, basting it in her juices. When I bottomed out in her, she rocked her hips forward and back, ensuring that I was completely covered in her slick cunt slime. Then she rose up until only my tip was inside her, only to drop back down again. This time, when she got up I ended up completely outside her. My shaft glistened with her juices. "That should help," she said, with a small smile on her face.
Still facing me, Alyssa again guided my cock to her asshole. This time, when she sank down, my head slipped in, forcing her ass to open up. Alyssa let out a long, low groan as she forced herself down over several seconds. She got about halfway before she stopped. "Fuck me, that's tight."