So you do get stimulation, though, if a guy enjoys it? In my experience I had a girl who kind of kept thrusting the idea at me and another that really seemed to enjoy it. Others were ambivilent if not against it entirely. I've never heard a reason why, one way or the other, but have kind of figured the ladies who enjoyed size might enjoy it more.
So far the evidence is about what I thought it would be. As I've see so far, there's no sexual enjoyment from the act (yet), BUT, I can't see any sexual enjoyment (in theory) from eating a woman out or sucking a cock (both of which cause sexual pleasure). But of course there is.
Personally, a good pair of tits around my dick is awesome... but only for a moment or two. I'm a very "let's get down to business" kind of guy. Oral, vaginal, etc. I wonder, though, if I had a girl who really got off on this psedo(okay, not really)-penetration -- if she moaned, got me aroused, etc -- would she be interested?
I know half the idea I like about going down on a girl is her moans of honest pleasure. Is it the same for women towards men? I myself can pretty much just cum from giving oral sex... of course I usually end up somewhere else entirely.