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"