When 1+N people are in the piledriver position (forward or reverse) lined up in a row and the male moves between asses dropping his cock into the persons ass.
I had these bitches lined up on my bed upside down in a reverse piledriver and I went for a splunking run and left myself all over the last girls face and chest.
Most often used in Cherry Magazines to turn hot young men on about to whack off. It is the semen goo that they shoot out of their cocks at climax that is large, sticky, and hard to get out of the eyes.
