I finished up my set at the gym, just as my girlfriend Molly finished with her yoga class, which was taking place in the small room next door. Yoga was something that Molly and her best friend Lisa did together twice a week. It was something they loved and enjoyed and it kept them fit and active. I loved it because I got to see two incredibly attractive girls in tight leggings and yoga pants. Of course my girlfriend Molly was gorgeous, with pitch black hair and light blue eyes, which was quite the combination, but Lisa herself was a stunner also. She was the blond bombshell that every guy fantasizes about at some point. 

After we had been at the gym and after we had showered, the three of us would always head to the coffee place down the street for something light to eat and tea or coffee. This was a tradition of ours and because of it, we had come to know the owners of the coffee shop rather well, and we would often be treated to free or discount refreshments. 

This particular day was no different. The owner served the three of us coffee free of charge, stayed to chat for a while and then returned to his duties as he got ready to close up for the evening. Lisa, Molly and I sat around chatting as we always did, complaining about work and family, talking about the gym and the Olympics on TV, telling each other what sports we had seen and what we thought the medal tally would be for each country. It always surprised me how much the girls could gossip each session. They met up twice a week and yet they always had something new and different to talk about. We had been doing this for nearly a year now and no subject had been exhausted by them. 

Lisa, as always, was the first to leave the coffee shop. "Here's my bus," she said, standing and stretching, picking up her bag and draining her coffee cup. "I'll see you on Friday."

"Bye," Molly and I said to Lisa in unison. Lisa did a little wave, said goodbye to the owners of the coffee shop and walked down the road to the bus stop, where her bus pulled up almost immediately. Molly watched as Lisa left, waiting until the bus had driven away to lean in and speak to me. 

"Do you want to hear something wild?" she asked, raising her brows. I had no time for gossip or girl-speak, but I could tell by Molly's face that this wasn't her usual gossip or tale. 

"Go on," I answered. 

"Lisa had a sex dream about you the other day," she said, giggling like a little school-girl. 

"W-what?" I asked. I was shocked and surprised at Molly's admission about Lisa, but I couldn't deny that I was turned on. I found Lisa attractive, of course I did. Anyone with eyes would find her so, but I tried to play down my reaction. I didn't want to upset Molly and tell her that a few times I'd had sex dreams about Lisa. I didn't want to upset her or be a jerk. 

"But that's not all," Molly continued. 

There's more? I thought. "Oh," I managed to utter dumbly. 

"I'm there too." Again Molly giggled, going red in the face. 

"You're where?" I asked cautiously, wondering if she was saying what I thought she was. 

"In the dream, silly," said Molly. "I'm there as well."

"Doing what?" I questioned. Is that what the girls talked about in the showers, or when I was up ordering at the counter?

"Sometimes I watch you and Lisa. Other times you and I are doing it and she watches. There was one time when all three of us were going at it! Can you believe this Carl?"

Of course I believed it. I was imagining it, and my cock was reacting. "I-I can believe it I suppose."

"There's more," Molly giggled. 

Still? How horny can Lisa's dreams be?

"Lisa's really turned on by the idea of me and her doing it. She's even more turned on by the idea of you watching, or partaking."

"J-just like in the dream?" I asked. Holy shit, I thought, is my girlfriend running the idea of a threesome by me?

"Just like the dream," Molly confirmed. "I see you like the idea," she said, looking down at my crotch-area, where I was semi-hard and starting to press against my pants. For the next ten minutes Molly filled me in on what she and Lisa had been discussing over the last few weeks. Everything was planned out, all they needed was me, or in the very least my permission for Molly and Lisa to try stuff. 

"So I am the key to this?" I asked. 

Molly nodded. "Yes. If you don't want to partake then you can watch us. If you're not comfortable at all then no more will be spoken on the matter. But ever since Lisa started telling me about her fantasies and dreams, I can't help but think about threesomes or having sex with another woman again."

Molly, very briefly in college, had had a somewhat steady lesbian relationship. She and this girl were very good friends and one night, after a party, the alcohol got the better of them and they experimented and had sex. The arrangement between Molly and this friend of hers was very clear, but it deteriorated quickly. Molly was only experimenting and learning more about that side of her, the friend wanted something more than just a quick lesbian fling with a confused girl. Not long after that, Molly and I met, got together, graduated college and moved in together and were now very happy in our relationship. One day soon I would marry Molly, but right now, we were happy in our jobs and life post college. 

"So what, Lisa would just come over to our apartment one night, we'd have some drinks and then you two would get it on?" I asked. 

"Not exactly. Lisa wants to do this at the gym."

"The gym? How? Why?" I questioned, baffled. 

"Think about it Carl, the atmosphere at the gym is one of electricity and hormones. Just walking into the place, you feel pumped and ready to get going. Add sex into the mix, and it would make for a very intense experience," Molly explained. 

"Okay," I conceded. "But where in the gym would this take place? When would it take place? It's busy most of the day and there are security cameras, we would get caught."

"The showers," Molly said, answering my first question. "And it would be some time after eight pm. The gym is quietest then, most people either go early in the morning or after work in the evening. No one goes after dinner, at night time."

"I see you and Lisa have everything planned out," I commented dryly. 

"All we need is you now Carl."

I pondered on this for a moment. Of course I found Lisa attractive and of course I had thought about sleeping with her many times, wondering what it would be like. I was a man- we'd all had that fantasy of seeing two girls and having threesomes. But at the gym? "I don't know," I finally said. "I don't want to get my membership revoked Moll."

"We won't get caught."

"You keep saying that, but the risk is still there," I responded. 

"Ah guys," said the owner, interrupting our chit-chat. "We close in ten minutes." Molly and I stood up, taking our cups to the counter and thanking the owners for their kind hospitality.

As we left the coffee shop and walked back down the street to the car, Molly continued to convince me as to why I should let this happen. 

"Doesn't the risk excite you just a little Carl?" she asked. "The fact that we could get caught at any moment makes it exciting and kind of naughty, don't you think? The forbidden element?"

"I suppose so," I said. 

Molly smiled at me triumphantly, even though I hadn't explicitly agreed to her request. "Exactly. You like the idea Carl., don't deny it." She looked down at my crotch and squeezed, making me harder still. Therein lied her answer. Now apparently all we needed to do was sort out when to do this and how. But Lisa and Molly, who had been quite event planners, had this all figured out as well. All I essentially had to do was either show up or give my permission for Lisa and Moll to do stuff. 

The next time Molly and I went to the gym, which was Friday night, I felt extremely awkward. I felt as if the guy behind the desk knew what we were up to, as if somehow he could tell just by looking at Moll and I, that something was going to happen. Lisa was there already and she greeted us warmly, winking at me before going off with Molly to the small room next door to the do the late yoga class. While the girls were gone I tried to concentrate on doing my set, but my mind was elsewhere. All I could picture was Molly and Lisa locked in an embrace, which made my cock jump in my shorts

The yoga class ran later than usual that night, and I felt as if this was on purpose. That maybe Lisa or Molly had asked the instructor to make things take longer to tease me. But then finally I saw the girls appear from next door. The few other people who had attended the late yoga class hung around for a few moments, getting ready to leave, which was agony for me. When finally the locker rooms were empty, and when Bobby, the guy behind the desk was preoccupied, I snuck off with the girls. 

The women's locker room and bathroom seemed somehow nicer than the men's. It looked exactly the same, but it just had a cleaner, more pleasant vibe. The water was turned on in the shower and I watched as first Molly, then Lisa undressed and got underneath the water. As the warm water poured down over them, and we were enveloped in steam, the girls started making out rather heavily. Lisa was the first to make the next move, leading in this dance. She grabbed Molly's breast and squeezed, and when Molly approved of this gesture, she grabbed them both at the same time and massaged them. The show the girls were putting on was pretty hot and I was aroused by this stage, and would continue to become more aroused as time went on. 

The kissing went even further next as mouths were left behind and nipples were sucked and pinched, the girls taking turns. While Lisa was sucking and biting her nipples, Molly looked over at me and winked. Was this a signal for me to undress? Because I certainly took it as that. My shorts were quickly removed as was my t-shirt and I sat back down naked and watched the continuing show, my cock rock hard. Lisa got down on her knees, kissing her way down Molly's abdomen, gently pushing her into the wall so that she had better access. Her legs were spread as Lisa found her target. I couldn't see specifics of what was going on, apart from the obvious; that Lisa was performing oral sex on a very appreciative Molly, who was moaning and making loud 'mmmm mmmmmm mmm,' noises in the shower. 

Lisa removed her head from in between Molly's legs and looked over at me saying "Care to join us?" Of course I wanted to join them, I could not get over there fast enough. I stood next to Molly, who kissed me deeply. I felt a warmth around my cock and then a tongue. I looked down and saw Lisa sucking and licking my cock. Knowing that she had just been doing something similar to my girlfriend was a massive turn on for me. Lisa was very skilled with her mouth and tongue and soon I was moaning, placing my hand lightly on the back of her head and rocking my hips. It was when she looked up at me with her blue eyes, a mouthful of my cock, that I knew it would be hard for me to last long. 

Thankfully though, she pulled herself off my cock and went back to Molly. She and I kissed as Lisa was between her legs, licking and sucking her, Molly moaning against my mouth and her body rocking.Lisa alternated between the two of us, taking us both to the edge several times before she switched over. It was a fun little experiment and I knew she enjoyed this. Molly was the first to climax, breathing heavily and loudly, moaning as Lisa continued her oral ministrations. When Lisa was finished, and when Molly had calmed down, the girls swapped places and Molly started working on her best friend. Seeing my girlfriend on her knees in the gym shower, her head buried between Lisa's legs was very arousing. It took a lot of willpower not to touch myself as I wanted to make myself last. 

Either Moll was very good at performing oral on another girl or Lisa was very easy to get off, or maybe it was both, but after a few minutes Lisa was screaming with lust, announcing that she was cumming. Shortly after that it was my turn to be pushed against the wall as the girls took turns sucking my dick, both of them sharing me. Having two hot girls on their knees in front of me was certainly a highlight of my life at that point. It was incredibly sexy. 

"Wait," said Lisa cheekily. Perhaps she could tell that I was close? "I want to watch you two, just like in my dream." Lisa moved away from us slightly and watched as I pushed Molly up against the wall, wrapped her legs around me and entered her. This wasn't going to be slow and loving, this was a quickie in the gym showers. Just the way I wanted it. I thrust into my girlfriend fast and quick, holding her against me, the warm water hitting us and the steam now making it rather hard to see, but I could still make out the shape of Lisa, and it was fairly obvious what she was doing. She was rubbing herself and masturbating. 

I moaned loudly when I saw Lisa dip two fingers inside herself. It was a very erotic moment for me, to be doing my girlfriend in a public place while her best friend watched on and masturbated, knowing that the girls had made each other orgasm from performing oral sex on each other. It was perhaps the sexiest moment of my life. Molly felt so good, so wet and tight around me, it wouldn't be long before I had reached my own climax. 

"Shit Molly," I slurred over the sound of the shower water. I pulled out of her and she got on her knees, Lisa following suit. I rubbed myself feverishly, my balls tightening before I unloaded a large load on the faces of the girls. 

"Was that as good as your dream?" I asked Lisa as the girls cleaned themselves up, the water washing away some of the cum. 

"Better," she smiled. She was probably correct.