What is Dropping The Thumb?
1.
When you are having sex with a girl doggy style you use your thumb to either rub her asshole or stick it in there like you would on a bowling ball.
While Brian was banging the girl from behind, her ass was postioned perfectly and so he proceeded with dropping the thumb.
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1.
At the apex of performing the "doggy style" sex position, remove the penis and ejaculate in the small of the reciever's b..