There is a fine line because a lot of times people would join and talk descriptively all of their sexploits so the mods keep the TMI level down.
Not that that's a bad thing, but for some the existence of sexually active (especially gay sex) is enough to get upset at.

ie.
I had sex with a guy once and it was awesome. - Perfectly okay
And then I took his xxxx and put it in my xxxx until xxxx xxx xxxxx. - The forum isn't supposed to be that explicit.

I'm not railing against the forum in general but you will find a fairly heavy conservative air here.
Hell, I'm the friggin virgin here I should be the one spazzing out about sex.

:P