double stuffed cupcake

When a girl shits on a boys ass hole while he is lying on his stomach and then uses her strap on to fuck him until all of the shit is in side his ass and then she punches him in the back of the head so that his anal cavity restricts and the shit pillows back out forming a shape that looks like a cupcake top. Then she spits on it for icing and feeds it to him with a fork.