[–] GCRadFem 32 points

This shows how much I know about men: I thought if they orgasmed, they couldn’t pee at the same time.

I went to Go ask Alice and she answered this for someone else:

Dear Reader,

The male body has a system that keeps it from being able to ejaculate and urinate at the same time. During sexual arousal, muscles at the base of the bladder contract in order to close off the passageway from the bladder into the urethra, the tube through which urine and semen leave the body. This makes it impossible for urine to be released during ejaculation.

Everything they write is fiction 101.

Interesting because I know a man who said his girlfriend was pegging him and he had to pee from it and it was all very exciting. I wonder if what they experience from prostate stimulation is intense pleasure that is orgasm-like before an actual orgasm?

Either that or there was something amiss with his plumbing.

[–] ProxyMusic 3 points Edited

The prostate is on the underside of the bladder and surrounds the male urethra. So when a male is being pegged through his anus, it's no surprise that his bladder and urethra where it connects to the bladder as well as his prostate will be affected. But when guys pleasure themselves, they are not usually able to stimulate their prostates as in pegging. Many of them try, of course...

I find this oddly reassuring, I'd hate to think he had something wrong with him.