Brine the trout
When a live trout is inserted into the vagina to naturally brine while writhing to its death and pleasuring the recipient.

Added bonus: Trout tail tickle- as the above trout is writhing, one's lesbian lover grinds against the tail for a special tickle.
After the fishing trip, Joanna wanted to brine the trout and its flapping tail titilated Leslie's twat.