I lived in malibu in the late 70s, sharing a house with another guy and a girl named Barbara. There was a dance place just down the way on PCH where on Sat. nights the gals all showed off their panties while dancing. Barb and I went on night and I lifted her skirt to show her sheer panties and, encouraged by the crowd, I removed her panties with my teeth, after which Barb danced every dance with her skirt held high above her waist. She ground her bare ass against my crotch while people watched and, as a way of saying thanks, she gave me a blow job in the parking lot before we headed home. Most of the time we were simply housemates and friends, but on this and two other occasions, she was very happily the recepticle for my cum.