The girl I took out seemed so sweet and innocent . Those glasses and that orange sweater...until we got in the bedroom and she pulled a Dirty Kirsten on me. Loudest librarian I ever heard!
A dirty Kerstin is when a girl from school goes into the boys bathroom, laying on the floor and screams for help from the janitor. As he comes in she grabs his dick and YELPS!
That girl gave my man Dave a good ol Dirty Kerstin to the point he died.