Sharon worked in a different satellite office in a different state. We'd talked business on email a few times. Not even what I'd call flirting. I didn't even know what she looked like, and had certainly never thought of her sexually, but apparently she'd been having sexual thoughts about me, because here we were, thrown together in the same bus on a drive from the hotel to the conference center, and she was gushing about how nice it was to meet me in person, finally, and how much she admired my work, all the time rubbing her leg up and down against mine.

So while I might never have thought about her sexually before, I certainly couldn't help it now. She was small, and cute, and bubbly, a little tiny bit on the plump side, kind of a blond slightly older version of my wife. And if I weren't already illicitly sharing a room with my long dark girlfriend who worked in sales for a rival company, I would have invited her back to the room and fucked her silly.

The more I thought about it, sitting through endless technical presentations theoretically livened up with lame jokes, the idea of fucking Sharon on the sly while sneaking around with Lisa became more and more appealing, almost to the point where I started chuckling out loud, unfortunately convincing the speaker that he'd actually said something funny. Sharon gave me an odd look, and I smiled back at her.

During lunch we wandered off to the trade show floor together, natural as could be. She managed to manipulate the conversation to figure out if I was married and I managed to get out of her that she had a roommate. But at this point I really wanted to kiss her, if for no other reason than to get her to shut up. I steered us over to Lisa's booth, waited while she charmed a customer out of an evaluation unit, then told Sharon to wait, and went over to ask Lisa what her plans were, making it pretty clear from my body language that something might be going on between us. Lisa, as luck would have it, was going out to dinner with the rest of her sales staff, and if the way the salesman on the other side of the display was glaring at me was any indication, at least one guy had more plans than dinner tonight. Whatever happened, Lisa would tell me.

We grabbed a quick bite to eat, Sharon chattering away, and me wanting to lick her until she screamed. Then we headed back to the conference room, accidentally bumping into each other a couple of times. The afternoon presentations were as bad as the ones in the morning, but this time I took a more active role in staring at Sharon, and smiling at Sharon, and winking at Sharon. On the ride back to the hotel we made sure we were sitting next to each other, legs touching, and a couple of times I put my hand on her leg, grasping her firm thigh and hinting that I might move my hand up. Lisa was on the same bus, flirting with that same idiot from her booth and doing a really good job of pretending not to notice me.

I asked Sharon if she was doing anything later, and she smiled at me, and said "I sure hope so." I asked for her room number and promised I'd give her a call as soon as the room was empty. I gave Lisa time to get into the room, and then went up myself. The salesguy was hanging out in front of the door talking to her, up close and very personal. I waited again. Lisa winked at me over his shoulder.

Finally he was gone and we were in the room, and Lisa had me backed up against the door, her tongue in my mouth, her chest pressed against mine, braless nipples poking at me through her silk blouse, her hand on my crotch, my hands on the silk skirt, lifting it, squeezing her naked ass beneath.

"I want to blow you" she whispered.

"No you don't, you want to blow him."

"Yeah, well, that too," she giggled.

I slapped her ass. "Slut" I growled at her.

"Yeah. What are you gonna do about it?" She asked, flouncing to the closet to get a new outfit, making a big show out of changing clothes for dinner in front of the full length mirror. Not that she really needed to change. She was always gorgeous. I was sure it was mostly for show.

"I'm going to fuck you from behind on the floor, in front of the mirror, while you tell me about how you blew him."

"That a fact, Mr. Big Talker?"

"Yep. Now go have fun." I kissed her again as she left and gave her another slap on the ass for good measure.

I waited again. So much waiting. To pass the time I called my wife. Made sure everything was OK at home, told her I loved her, and that I would be out pretty late. Then I called Sharon.

She was there fast. Like a fuzzy little animal in heat. She was clearly horney as hell, in need of a good fucking, and turned on in spite of herself that I was going to be cheating on two women to give it to her.

She was impatient, and insistent. Kissing me, fondling me, guiding my head down to her breasts and then down to my knees, licking her as she leaned back against the door, where I had just been kissed by Lisa.

"Now." She said. "I'm ready" and started to drag me to the bed.

A lot like my wife I thought. This would make it even more interesting.

"No." I certainly wouldn't say that to my wife. I guided her to the floor in front of the mirror, gently pushing her down. She took me in her mouth. Not with any great talent, but I was enjoying the image in the mirror. I put on a condom and moved behind her. She reached back, grabbing my cock, guiding me in. I entered her, and the mental rush was incredible. There she was on all fours, with that curly blond hair, and the breasts swaying beneath her, and her plump ass in front of me. I fucked her. Using her. Just like she was using me. Using me to know she was sexy. Using me to come. Using me. Using her. Using me. Using her. I was pounding in and out now, hands on her hips, watching her swaying back and forth in the mirror, a completely lost look of ecstasy on her face. We came together, and she pitched forward, groaning with pleasure. I lay on her back, kissing her neck, and then rolled her over and started licking her clit again. She was crying at me to stop and then she came again, even harder.

Two hours later Sharon was back in her own room, having come once more from my hand, looking thoroughly sated, and Lisa was back from dinner, on all fours in front of the mirror as I fucked her from behind, telling me how she'd blown her coworker in the rental car before they'd all gone into the restaurant and then again after they'd left. As I fucked her my mind flashed from the image of her gorgeous face as I slid in and out, to the image of that same gorgeous face sucking her coworker's cock, to the image in the mirror of me sliding in and out of her, and the image of Sharon, in the mirror, in the same position, and sliding in and out of her.

I grinned at myself in the mirror as I fucked Lisa, the images jumbling together, Lisa's breathing growing faster as we both approached orgasm, her ability to talk long gone. And then I focused. One silent mantra, over and over with each stroke of my hips as I drove us both over the edge. Sharon. Sharon. Sharon. Sharon.

Time stopped.

"Sharon" I said in my mind to myself as we came.