WARNING IMMATURE JOKE: I figured out why they called it mirrors..... because I can see myself in it I apologize, I couldn't resist....
Oh i like this position is very hot and sexy and i call it "cross scissors", but i'm not sure is right term.
i've never really understood the purpose of this. i mean, it just looks like an awkward position. i guess i should probably try it before knocking it, though.
we always called it "bumpin' uglies" it is akward. Only useful in porn or when someone is watching, IMO. Works much better to rub on each other's thighs between your legs... ...or 69
/BUMP OMG this was a great thread... thuoght I would add what I found: "Colloquially tribbing is known as "bumping fur," "scissoring," or "scissorfighting." Slang includes "bumping donuts," "slamming clams," "train spotting," "clit-clatting," "clam-jousting" and so on" found here