Tie me in the doorway, facing you

You stop me in the entry to the cubicle. “Legs spread, hands up.” I know exactly what that means, and I suppress the urge to ask you to reconsider even as I obey. You must see it on my face, though, because you pat my cheek as you clip my wrist cuffs over my head. “Poor boy, given instructions you don’t want to follow. You’re being good for me though, doing it anyway. I know you’d rather have me in you than some stranger-” your teeth flash in a hard grin, “-but tonight I just want to watch how you do with the chain, under… diverse conditions.” You kneel down and clip my ankles into place, spread wide enough that my hips start to complain almost immediately. Before standing, you pull the plug from my cunt, and I clench down around the sudden emptiness. It was a smaller one today, but still, its absence feels strange.

You pull two lube syringes from your bag, slide them inside me, and within moments, I’m squelchingly slick, cunt and ass. Behind me, I feel the cold **** of Sharpie on my back as you write out your terms. What you’re allowing to be done to me, by whoever walks past and takes an interest.

You don’t tell me what it says. You never do. I can only wait to find out. The lube is usually a clue, but not a guarantee. I don’t know if it’s because no one had a fancy for that hole that night, or if you just did it to keep me guessing.

As you settle onto the seat I’m facing, a hungry expression comes over you as your eyes rove over my naked body, the chain that’s swinging and tugging less and less gently at my nipples and my clit, my face. I must be showing apprehension, because you smirk. “You’re my good boy, aren’t you?”

“Y- yes Sir,” I manage. The train rocks hard, and I hiss as the weight of the chain drags harder at me.

“And that means…?”

“Pleasing you. Obeying you.”

“Even when you hate it?” Another bounce, another tug. I gasp, try to reach for the pleasure in the stimulation, but it’s hard to separate from the growing pain.

“Yes Sir.”

“Even when it hurts?”

“Yes Sir.”

“Very good boy.”