When having sex with a girl you put your balls into her butt hole. Caution dont not let her tighten her butt muscles hard this can result in a broken ball or two. If your having anal sex try inserting your balls in to her vagina. Variants include single ball penitration, and the more common zero ball penitration.
Obama -"I was having sex with this pornstar in my dreams and she told me to insert my balls in her ass ."
Clinton-" Me and hillary call that double ball penitration"
the act in which the penis does come in contact with the vagina and goes like woooooooooaw. ejactulating the white thin liquidcum.
-While Kirsten was being penitrated by Dave, her screams were soooo loud her mom woke up and came down and joined the hott steamy kinky sex.
-George penitrated liz giving her an orgasm so hott it reminded me of a hard core porn film that i watch every weekend and masturbate to.
-When Alex penitrated Megan, she screamed and moaned with heated emotions in her groin area.