Mating isn't fatal

Just rewatched "Prisoner of Benda" for the umpteenth time, but something clicked last night.

In the episode Leela switches minds eventually into Professors body. Fry eventually into Zoidberg's body.

They eventually end up in the throngs of snu-snu, but Zoidberg (at least his body at this point) is fine.

P.S. all glory to the hypnotoad