It is dark, dank and there is little space. As this encounter goes on, the muscles of my back are pressed against the wall of the narrow alley, wearing against the taut fabric of a t-shirt already struggling to hold in the huge, muscled body it's stretched over.
I let go of the train creep's head -- I haven't bothered to ask his name -- and let it fall forward. As his head droops, I hear a splat as my spit fall from his face.
I leave him like this for 30 seconds or so, daring him to say something, look at me, or ... do anything. He doesn't. Doesn't even dare ask for more, because he is in full understanding of the dynamic between us.
If someone was watching this encounter on CCTV, they would horrified by the sight of me towering over this gasping, sweat-soaked pen-pusher. They wouldn't realise that the worst thing I could possibly do now is to walk away from this scene. I know men like this as well as I know the contours of my body. I knew him the moment I saw him hypnotized on the tube, from the moment I felt a pair of eyes follow the progress of a drop of sweat on my thigh. If I walked out of this alleyway, he wouldn't get off his feet until morning, at the earliest, and, for weeks to come, he would addictively revisit it, hoping I would return.
Whoever he is, he knows that for a man so shriveled, small and pathetic as him to feel part of the Sexual World -- to partake in what he sees on TV, in ads, movies, porn -- that it can only be borrowed. Never his. Struggling to fit my massive cock in his mouth makes him, for just a night, part of something. For the next twenty years, every time he jerks his little Duracell dick off, he'll remember the feel of my monster looming heavily over him, plunging into his mouth and pressing it open. He'll remember the tight feel at the corner of his lips that indicate how much he has stretched to accommodate just the tip of a real man's manhood.
Now, though, he is still on his knees, facing away from me, head lowered.
"Raise your hand," I say, "and open your palm. Face it to the sky."
He does, and I flop my cock onto his outstretched hand. Now I am deliberately feeding the fantasy of the next twenty years. I want him to remember the exact way this felt: the groaning weight of my huge meat in his hand, the feeling of barely being able to lift it, the pulse of thick veins somehow carrying enough blood to keep my monster erect.
"Close your hand," I say.