buggery | Tentacle Hentai, Much?

This is from an actual article.

Octopus can't hide his desire
Field researcher 1st to document invertebrate erection

By John Biemer
Tribune staff reporter
Published November 12, 2003

As the Field Museum's Dr. Janet Voight watched a male octopus get rebuffed in his attempt to mate with a female, she noticed something striking: One of the sea creature's eight arms was longer than usual.

This was noteworthy because the two-spot octopus uses the tip of one tentacle to pass spermatophores, or tubular packets filled with millions of sperm, to females during mating. Later study concluded that the arm was engorged because it contains erectile tissue--the first documentation, scientists say, of an invertebrate erection.

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The Chicago Tribune site requires membership and login, if you want to read the full text; I think I've quoted little enough that this falls, barely, under Fair Use.

It only looks like something out of a Sexy Losers strip...