before a male has any physical penal or oral contact with "strange" vagina, he must first "check the oil". a simple dip of the finger with a discreet sniff, sniff will do. if the oil needs changing the test finger should be jammed into the female's nostril. if not, have at it, til its done swoll.
yo gashmaster, what's that gnarly patch on your upper lip? didn't you check the oil before lickin the wound?
after checkin the oil, i told her to turn around for some puppy.