Vore is a fetish rather than genuine porn. If you want this couched in a friendly manner. He wants to code something where the character bites and then swallows someone, think Kirby. Apparently he also wants it to be a One hit KO which is kinda lame.
How much code do you know? Do you know how to code a basic attack? How to make changestates occur?
Lets leave the fetish stuff out please, you want to code something where the opponent is caught and eaten, fine. We'll work out how to do that.