After jizzing in your partner's ass, have them fart, and blow it all over your face, and finally make them lick it off.
Max: "oh hey you remember jenny?"
Tanner: "oh hell yeah man. what about her?"
Max: "oh last night, i was doing her in the ass, and made her have a wet ass-burp!"
Tanner: "she lick all that jizz off too!?"
Max: "i made the bitch!"