One of the most obscure and legendary of all gay sex acts. First the penetrator ejaculates into the penetratee's rectum. Then the penetratee presses his anus firmly against the penetrator's rectum and farts the semen back into the penetrator. The penetratee they sucks the semen out of the penetrator's rectum and spits it into the penetrator's mouth. Level of difficulty... ten.
He totally gave me they best birthday gift. A Double Chocolate Thunder Creampie Snowball. It was amazing.