Scuba Sex

There's got to be a euphemism for this—like "Mile High Club," except, you know, underwater. A couple of scuba divers strip naked and engage in a number of sexual theatrics. Don't worry, this is entirely heteronormative (I think). I mean, it's not like I'm linking to that guide to having sex with dolphins or anything.- J. West

Novas T
cnicas de Mergulho ("New Techniques for Diving" @ adultdreamhost.com, via Blography)
How To: Dolphins (zoophile.net)