Originally Posted by DontRunMeOver

That's right, positions that require a vagina and a penis (missionary or positions which are more like that). You could pull your legs up, but it could only work up to a certain angle. Also 69ing would have to differ in certain ways - its probably easier with a guy underneath a woman than it is for two guys trying to do it at the same time and likewise for lesbians it'd be even easier.

Like I said already, a couple of guys will be able to do things with each other that you wouldn't be able to do in straight sex. I'm not saying its a lesser form of sex, but it is different in a lot of respects.