I think the thread needs a bump, given that there's probably been some turnover among the people who frequent Freeones, and I'd like to hear what the recent cohorts have to say. Also I have some new questions about lesbians.
This is where I think the consensus is (and I agree):
1. It depends on the sex of the parties involved.
2. If one of them is male, then vaginal or anal is sex, and nothing else is, except maybe very deep oral (deep enough to be considered throat penetration rather than just sucking).
3. If neither party is male, then oral sex counts as sex. (I don't think the issue has come up, but presumably strap-on sex also counts.)
But 3 needs to be explored some more: If a girl penetrates another girl's vagina with a dildo, is that sex or is that just a hand job? And what if she just uses her fingers to penetrate the other girl's vagina? And what if one girl just uses a toy on the other's clit but doesn't penetrate? Or just uses her hand without penetrating? (Is there any fundamental difference between using her hand, her tongue, or a toy for non-penetrative sex, and since the consensus seems to be that the tongue counts for lesbians, then why not just fingers or a toy?)
And another question about when one or both parties are male: does between-the-thighs sex count? And does that depend on whether both are male?
Also, is "sex" the same as "fucking"? For men presumably it is: anal or vaginal counts, but not oral unless it is very deep. For g/g I'm not sure. Can a girl who has had non-penetrative sex with another girl truthfully say, "I fucked her" (even if you consider the act to be "sex")?