Hermaphrodite Sea Slug Stabs Mate in Head During Sex

[jtuck004]

Cats may bite, and geese may have barbed penises, but one newly described hermaphroditic sea slug has taken violent animal sex to a new level by stabbing its mates in the head.

The perpetrator of this bizarre act, Siphotperon sp. 1, is a small sea slug found off the northeast coast of Australia. A simultaneous hermaphrodite, it has both male and female reproductive organs that it uses simultaneously during sex.

For its male organ, the slug has a two-pronged penis consisting of a penile bulb that transfers sperm, and a separate, needlelike appendage called a penile stylet that stabs and injects partners with prostate fluid-containing sex hormones called allohormones.
...
But Siphotperon sp. 1 was the only of its relatives that consistently stabbed its partner between the eyes. This is the first known instance of such reproductive head-butting in the animal world, the team reports today (Nov. 12) in the Proceedings of the Royal Society B.

Here.

I saw this in a couple of places, but I haven't seen anything about whether they had a second date...

[BainsBane]

1. Stabbing your sexual partner in the head during sex tends to lessen one's chances

for a second date. I'm guessing that would be high on the list of dating don'ts.

[Warpy]

3. Well, all hormones and heads aren't created equal

and getting a primitive brain flooded with happy hormones might be the enjoyable part of the whole business.

I'd insist the stabber pick up the check, though.

[petronius]

8. That's what I'm thinking: a 40-minute long, mutually-hermaphroditic

love-making session with sex-hormones injected directly into the bloodstream sound like it may have potential. I'd try it at least once...

[TreasonousBastard]

2. Beats the praying mantis' end to a dinner date.

[chknltl]

4. SnM Sea Slugs

Great name for a garage band, the cartoon on the kick drum cover could be interesting.

[jtuck004]

5. I can't wait for the interview of the members to be posted on their blog...

"So. tell, me, what is it about a hermaphrodite sea slug that stabs its partner between the eyes during sex that inspires your music...?"

[TxDemChem]

7. Lol, you two (previous post) are hilarious!

I was just thinking that this sounds like something Rob Ford might be into. He's the band's manager.

[Skraxx]

6. I will call him "OJ"