J Tuck

The act of a man laying on his stomach while bending his knees backwards, forming a J with his body, while another man spreads the first man's legs and tucks his penis between the first man's buttcheeks. He then proceeds to lean forward and lick the back of the head of the first man, stimulating his head nerves and creating a truly sensual experience.

I was J tucking my boyfriend last night after the movie and when I licked his head he screamed.