Dude looks like a lady.

I'm a transvestite cuttlefish and I'll be your back door cephalopod. I eat more chicken than any man ever seen.

Cuttlefish may be the most talented quick-change artists in the animal kingdom. Single males can adopt a sophisticated feminine disguise to help them get near females that are guarded by large males. Now researchers have proved that the mimics, who can change their appearance instantaneously, are successfully mating with such females.

Each year, during the winter, thousands of giant Australian cuttlefish (Sepia apama) gather on the southern coast of the continent to mate. The competition between males for the females is intense. On average, four males fight over each female, but the ratio can be as high as eleven to one. The winner of each challenge, usually a large male, guards his mate closely. But smaller males still manage to secure about a third of all matings. There is a range of tactics from which a 'sneaker' male can choose. The options include waiting until the consort male is busy fending off a challenge; meeting his mate under a rock as she prepares to lay an egg; and disguising oneself as an female.

In order to appear female, the male mimic must change color, hide some of his arms, and change the shape of the others. Marine biologists at Woods Hole Marine Biological Laboratory watched five mimics off the coast off Australia and recorded 62 cross-dressing approaches, of which 30 were successful at deceiving the guardian male. DNA fingerprinting showed two of the mimics managed to impregnate a female.

The story includes a link to video of the hot gender-bending action, but I couldn't really make much sense of what was happening. Still, free cuttlefish fetish porn.