Octopi do something similar but at least they meet up, the dude will just hand her his dick tentacle for later. Octopi being octopi I would assume it grows back.

Most cephalopods die after mating. Their sex hormones make them go crazy and they stop looking for food except to eat themselves occasionally. Once the sex hormone glad starts pumping them out, it doesn’t stop until they die a horrible death. Live fast and die young.