My dad drove my sister, her friend, my girlfriend and I to some museum about 4 hours from my place (we left at like 5am, so we brought blankes and pillows).
So me and the girl are in the back row of his van, just chillin layin down. I finger her, she sucks my dick, then we fucked.
My sisters friend would peek over her seat and we would just freeze, then continue. One of the most awkward sex escapades I've had, very...VERY quiet sex.
Dad asked me today what my funniest jack off story was, I just told him I banged the girl in the back of his van while he was driving
Dad said nice