Well, I'm not into hentai, unless you count devil 
hunter yohko as such (Other than the first 
episode, which is not that outrageous, I don't 
think there's any hentai). I think some girls are 
into yaoi, and it's probably because of 
the "pretty" boys - that's part of the reason a 
lot of us are such Fushigi Yugi nuts.  But I've 
never met a girl that liked the tentacle type 
thing...