Runs in the Family

During sex my girlfriend suffers from temporary paralysis from the waist
down. Whenever I put my penis there’ she never feels a thing. So I
decided we should go to a doctor. Reluctantly my girlfriend agreed, and
came along with me.The doctor asked her, “Do you know if this runs in
the family?”My girlfriend replied, “I don’t think so. It never happens
when I’m with his brothers or his friends.”