NOAA Ship Okeanos Explorer's remotely operated vehicle Little Hercules captured this video of a pair of Pholidoteuthis adami getting hot and heavy in the northern Gulf of Mexico. That's the male on the bottom, swimming upside down, while the female is backwards on top. It may look more serene than those hentai tentacle scenes, but don't be fooled; squid sex is strenuous business.

[via Laughing Squid]