Octo-cunnilingus
Inspired by the erotic painting The Dream of the Fisherman's Wife, it is the act of oral pleasure performed upon a woman's genitalia by a cephalopod. Commonly performed in Eastern Asia, though has spread to certain sex clubs in Western Europe.
The octo-cunnilingus was quite pleasurable for his wife, but it left the octopus confused about exactly what it meant for their relationship.