Maybe its just me, but I keep thinking about the Monty Python sketch involving a stuffed penguin, including the line "Oh, intercourse the bloody penguin"

when i was in high school i was talking with a friend of mine at his house and we were discussing our recent conquests. his little brother burst into the room in the middle of our conversation and his eyes got very wide. he asked "are you guys talking about intercourse?" his brother flicked him in the middle of his forehead and said "no dunce, we are talking about fu**ing". i was laughing so hard i almost fell off my chair.

It IS a small town in PA! IJR has to get one in here and there, I guess...

I'm giving this a three because Seven of Nine used this term and it just worked.

Too clinical. . .mice have intercourse. . .

When you see two wildebeests on the Discovery channel mating, then the word intercourse doesn't seem so out of place. Yeah, it's sexual intercourse, but if you're trying to get it on, referring to the act as intercourse makes it sound more like you're doing a scientific experiment rather than having fun.

Too clinical and nerdy sounding --- If you are still using this word then you need to lose the Chewbacca costume, and pocket - protectors, wipe the snot off your nose, and find yourself a goth chick to toughen you up a little bit.