Jah. this is pretty gray area. what is actually first base, second base and whatever bases you're in. judging by it, is flirting terms in architectural jargon, says, scaffolding? where is the line? oh well, here are some answer i found in Yahoo Answers. Pretty ingenious i says. Didn't know they'll be plenty of love guru @ perverts lurking out there. also unrelated, where will we classify foot sex? Foot fetish= ground floor?