Unremarkable women you see every day at work are suddenly dressed in fabric swatches and will eagerly shake their guns like epileptics shoot-fighting Pokemon in a strobe light store. The Mile High Club is the ultimate fantasy for everyone who's still stuck in the 70s and has a limited imagination. Who are you to complain? Captain and Josh do everything they want with tiny virgin girl Roza. Girls gave themselves up to lust. Wild girls are teaming up to engulf studs cock.
On a smaller scale, there's plenty of evidence including ghetto video on ebaum's world to support the fact that small boats don't take well to rocking and general hump-like motions and will, in fact, sink your ass if you try such things.
Unfortunately, while nature enthusiasts may enjoy the freedom of such a exhibitionist act, there's some cause for alarm if you're anywhere near, say, bear country. For those too lazy to get to the beach or too fearful of an incident involving jellyfish and taint, there's the semi-thrill of sex in a swimming pool. Aside from all the hideous and obvious downsides to cab sex, there's always the chance you'll end up on some site like taxicams. Girl gets tied up and toyed. Busty virgin gives blowjob and fucks for the first time. D would like you to know that when you have sex underwater you're probably apt to lose track of some important things like buoyancy, which means you could end up floating to the surface quicker then you'd planned and giving yourself an embolism. Well, you should at least know the dangers of these fantasy sex locations before you get drunk enough to try it.