1 definition by Gmcd43
Cross pollination occurs when, during a threesome with one male and two females, the male has anal sex with one girl and then puts his penis in the other girls mouth. He then puts his penis in that girls ass and then into the other girls mouth.
John is having a threesome with Jane and Crystal. He puts his penis in Crystal's ass then into Jane's mouth. He then puts his penis in Jane's ass and then into Crystal's mouth thus causing cross pollination between Jane's ass and Crystal's mouth and Crystal's ass and Jane's mouth.
by Gmcd43 May 21, 2012