would a girl a use a strap-on on a guy?

Some couples do, it's called pegging apparently, but I doubt many do it because most men would probably be shy about asking for it, especially if they feel they may be looked down upon for it. I can't say I know or have heard of particular people ever doing it, though.

Yeah. In fact, it's not that uncommon. Recommending that couples who are looking for a more adventurous sex life try out anal sex, especially with the male partner being the receiving partner, has been all the rage among sex-advice columnists for the past few years.

Yes in fact that's the only type of sex my wife and I have! I'm am a sub cross dresser who is locked in chastity and cuckolded by my wife so I get pegged by her because that's the only way she gets satisfaction from me.

Don't see why not

Yes it is called pegging & it is common in the BDSM scene.

There are perverts in every walk of life, so I'd guess, yes.

Yes...it happens...In fact many men find it quite pleasurable!

I want to do it with my boyfriend but he won't let me :(