longtimelurker: I'm really not a religious person in the slightest, but I'd see 'sex' in religion terms to be anything where the penis enters the partner's body (i.e. oral, anal and vaginal but not mutual masturbation). I think this is a more common view here than in the US (where I heard that oral sex isn't viewed quite as seriously). Saying that, however, I wouldn't be too keen on my girlfriend jerking off any guy that asks for it!!!

I find it a bit crazy, anyway - as if you listen to the clergy you're not meant to masturbate, either and how many guys (and prob. girls) can honestly admit to that? And that's just the start of a whole load of things that is seen as sinful but people do anyway.