This definitely falls into my sub fantasy category.

I'm a guy. That means I care about cock size. Don't ask why, there's no explanation, we're just built that way. Personally I'm not ashamed to say I am what you could call "fitting healthily into the average", and I'm fine with that. But I do have this little fantasy.

I'm naked, and tied. In my mind I see myself on my knees sitting up, hands tied out to the sides. This group of extremely attractive more-or-less well dressed young women then all spend some time laughing, giggling, pointing, making jokes, generally humiliating me over the size of my cock. Letting me know that I'm just not man enough for their tastes. At some point a couple of them go as far as to get highly sexual in front of me, while constantly reminding me that if I was man enough they wouldn't have to resort to that. I have to watch, unable to touch myself or them, while they do each other, while the others go on teasing me and generally making an ass out of me. Basically an outright male inadequacy humiliation fantasy.

And be damned if it all doesn't turn my crank almost every time.

Anyone else?