Nut Cake

An art practiced in sex where right as your about to nut, do it on the outside of a vagina,so the nut resembles the frosting on a cake.

Guy 1: So how did the sex go.
Guy2: It was the best sex I've ever had.

Guy 1: Good for you buddy. How did you reward her for it?
Guy2: I made her a Nut Cake.