I've always been curious. Use the ticky boxes to answer anonymously if for some reason you're embarrassed to talk about your boners.
-What's it like to have an erection? Is it annoying, pleasurable all on its own, slightly painful, neutral? Do you often get them at random times? Do you have any conscious control over them? Can you pee with an erection?
-What's sex like? How do girls (or boys) feel inside? (I kinda know of course, but only with fingers.) What about sex really feels best to you--pressure, friction, warmth, "all of the above it's sex you silly girl"? Do different partners feel very different?
-What, in your opinion, makes a partner "good in bed" or not?
-Are your nipples sensitive? How 'bout ears? Butt? Anywhere else?
-What's it like to come? Does it feel more like a peak or a relief or both? Do you feel it most right before you ejaculate or as it's happening?
-So, uh, just in general... what's it like having a dick?
EDIT: One more: what are condoms like? How do they change sensation?