Facehugger

A sci-fi inspired sexual act usually performed by a male and a female participating in missionary or cowgirl. When the male is approaching orgasm he puts his thumbs together and inserts them as deep as he can into the sexual partners mouth and firmly grabs each cheek with the corresponding fingers of each hand resembling a facehugger. The resulting effect is a tightening of the vaginal wall as the gag reflex begins taking effect, thus increasing the intensity of the males climax. Prolonged use of the facehugger can be used for erotic asphyxiation. Note a Double facehugger can be achieved when the move is conducted by both participants upon one another simultaneously. The facehugger first appears in the hit sci-fi movie Alien (1979).