Oral Sex
Facesitting is a form of oral sex in which the receiver sits on the giver's face and pushes into it with his or her genitals. Oral sex can be performed by both partners at the same time in the so-called "sixty-nine" position.
Spitting and/or swallowing of the ejaculatory fluids may cause different sexual stimulations. Also, eye contact, during fellatio or cunnilingus, may be very stimulating and more pleasurable because it acknowledges that a real person is performing oral sex, not a machine or sex toy. Autofellatio is a possible but rare variant; autocunnilingus may also be possible for women with extremely flexible spines.