For the last year, I have been in a secret relationship with a woman living in my apartment building — an exclusively sexual relationship. Other than our exciting sexual adventures, we know little about one another.

It began simply. On a number of occasions we shared an elevator, progressing to that silent nod of recognition fellow tenants of a high-rise building are apt to give one another. As I think back on it, without much eye contact, we were both giving each other the once-over. I definitely was. Louise is a very attractive woman. Whether dressed for an evening on the town, or in jeans and a t-shirt for weekend chores, she exudes a strong sexual energy. Naturally, she was often accompanied by a man.

Then came our first adventure. One weekday evening, I rushed into the laundry room with just enough time to do a wash and dry before the security staff locked the room for the night. There were a few people at the driers, but all the washing machines were empty. I moved down the row and selected one. I had just lifted the lid when she came through the door, dressed in jeans and a blouse. Louise took a machine near mine and began loading her clothes. Dropping some on the floor, she bent over to pick them up. Her blouse fell open, exposing her lovely, bra-encased breasts. Without straightening up, she turned her eyes up to me and smiled. I smiled back, then got busy loading my machine, a little embarrassed at having been caught ogling.

In unison, we measured soap, set dials and plunged quarters. I held the door open for her and followed her down the hall to the bank of elevators. Louise pushed for down, I pushed for up. She looked at me and then at her watch. “About thirty minutes, right?” I checked my watch and said, “Yes.” Her elevator arrived. She entered and smiled at me as the door closed. I was left alone in the hall with the lingering scent of her perfume — and a hard-on.

Naturally, I was back in the laundry room a little bit early. Neither machine had finished its cycle. I leaned against my machine, its warm vibrations pulsing into my crotch. Seconds after Louise arrived, both machines shut down together. She was still wearing the same blouse, but now, instead of the jeans, she wore a buttoned-in-the-front skirt. The bottom buttons were undone to just above her knees. She sort of smiled at me and went right to her machine. Unloading it, she carried her clothes over to the row of driers, followed by me and my clothes.

Louise selected two driers and got busy separating her clothes into them. Mine all went into one. I set the dials, inserted my quarters, and turned to watch her. She was leaning over, putting her things into the drier. Her blouse had fallen open, and I could see that she was no longer wearing a bra. Taking the rest of her things, she squatted in front of the other drier. Her skirt opened and rode up, exposing creamy thighs and very lacy panties. As she shut the drier doors, I became aware that she was staring hungrily at the bulge in my pants.

She stood up, set the dials and started her machines. Without looking at me, she said, “What should we do?” I looked around to make sure there was no one else in the room. Then, seizing the moment, I led her over to an alcove that’s out of sight of the door, put her back to the wall and kissed her. I let my hands run over her as she returned the kiss. Reaching inside her blouse, I fondled her breasts as I felt her hands unzipping my fly. We broke the kiss and I stepped back. “Take your panties off,” I said.

Louise bent down, undid the rest of the buttons on her skirt, and then slipped her panties down and off. She picked them up and stuffed them into the pocket of my pants. Then, leaning over, she took my cock into her mouth and sucked gently as she undid my belt and pushed my pants and shorts down. When she straightened up, I kissed her again, her mouth now tasting of my cock. I pulled her blouse off, and then my hands went down to cup her bottom. I lifted her up against the wall, and her legs spread around me. Our lips met again as her warm wetness slid down onto me.

I was not even fully into her before the first tremors of orgasm began to pulse through her. Then, just as she was coming down, my own orgasm began. I ejaculated into her in long hot streams of all the energy I had. We finally broke our kiss and trembled in each other’s arms.

Suddenly aware of our exposed condition, we quickly pulled ourselves together. “Come up to my place,” I said.

“I can’t,” Louise replied, going on to explain that she had a girlfriend staying with her.

She left me at the elevator after reminding me that our clothes would be finished in about forty minutes. I returned to my apartment and fixed myself a drink. My energy returned as the minutes passed and I was soon more than ready for her again.

Upon returning to the laundry room, I was surprised to find Louise already there, folding those delicate things of hers. I was disappointed to see the security guard there also, waiting to lock up. As I went to my machine and began to unload, the guard moved off and began emptying the change compartments on the washing machines. Louise smiled at me and, leaning over, showed me her fine breasts again as she began to unload her second machine.

I caressed her bottom as we walked down the hall to the elevators. Again, I asked her to come up to my place. Again, she begged off with the same excuse. I put my hand between her legs and soon had my fingers deep in her pussy. She was beginning to moan and rock on my hand when the elevator arrived. It was empty, and I moved her into it. We kissed passionately as we rode up.

The door opened at my floor. Again, I tried to coax her to my apartment. Again, she begged off. “I’ll do anything you want. But only when I can. Okay? And no one must know. Right?”

The elevator door closed, and Louise knelt and began to fellate me. In the time it took for the elevator to go to the top floor, I came in Louise’s sweet mouth. She stood and swallowed, then picked up her clothes basket to hold in front of my naked cock when the elevator suddenly stopped and the door opened. No one was there. Louise pushed for her floor, and as the elevator moved back down, she dropped the clothes basket and sank to her knees. Again, she took me in her mouth.

Before I knew what was happening, the elevator stopped at her floor. Louise put my cock back in my pants and pulled up the zipper, rising as she did so. Picking up her basket, she stepped through the door. As it slid shut, she smiled and said, “I’ll call, I promise.”

In a daze I returned to my apartment. That night I had wild dreams about her. The next day I wasn’t sure whether it had been real or not. Then, after work, changing into my jeans, I found her panties in the pocket. It had been real!

I didn’t see or hear from Louise for almost a week. I had almost convinced myself that I’d never hear from her. Then, late one night, the phone rang, and her sweet voice said, “I’m available.”

And so began a most mysterious adventure.