When you insert your penis between a girl's boob and where her arm is. Armpit fuck sounds nasty, but half titty fuck is hot.
Yesterday, Lewis half titty fucked Jayna, and she let him cum on her face. Today, he half titty fucked Kristin, but she TOLD HIM HAD TO CUM in the waste basket!
by King of Thorns January 01, 2011
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