CIM stands for Cum In Mouth or Come In Mouth. It is the last part of Oral sex and is usually performed after natural oral sex. Oral sex is sexual activity involving the stimulation of the genitalia of a sex partner by the use of the mouth, tongue, teeth or throat. Cunnilingus refers to oral sex performed on females while fellatio and irrumatio refer to oral sex performed on males. Analingus refers to oral stimulation of a person's anus. Oral stimulation of other parts of the body (as in kissing and licking) is usually not considered oral sex. People may engage in oral sex as part of foreplay before sexual intercourse, during, or as intercourse. Oral sex may be practiced by people of all sexual orientations. In heterosexual contexts, oral sex is used by some couples as a method of contraception and may be chosen as an alternative to sexual intercourse for this reason. As with mutual masturbation and other forms of outercourse, many people do not consider oral sex to be "sex" in the same way as penetrative intercourse and regard it as "third base". Thus, for many people, oral sex can be seen as one way of experiencing sexual pleasure before losing one's virginity. 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 or giving a pearl necklace may cause different sexual stimulations. Autofellatio is a possible but rare variant; autocunnilingus may also be possible for women with extremely flexible spines. An act of group sex restricted to one woman giving oral sex to several men is referred to as a gangsuck, blowbang or lineup, all derivatives of the slang expression gang bang for group sex. Bukkake and gokkun may also involve oral sex, though not necessarily. Escort Lounge categorises CIM.