of foreplay or to avoid penetrative sex, people engage in a variety of non-penetrative sexual behavior, which may or may not lead to orgasm. Mutual masturbation: The manual stimulation of the penis or scrotum in males and the clitoris or entire vulva in females. Partners simultaneously stimulating each other's genitals by mutual or simultaneous masturbation, rhythmic inter-genital contact friction or actual penetrative intercourse can lead to orgasm in one partner or the other (or sometimes simultaneously in both). Dry humping: frottage while clothed. This act is common, although not essential, in the dance style known as "grinding". Handjob or fingering: Manual stimulation of a partner's penis, scrotum, clitoris or entire vulva. Known as "wanking" in the UK, and "fapping" in modern colloquial terms. Footjob: using the feet to stimulate the penis. Mammary intercourse: using the breasts together to stimulate the penis through the cleavage. (Should not be confused with a "boob job" meaning to have augmentive surgery done on the breasts.) Also called a titjob, titty-fucking, a tit-wank; several other slang terms exist. Axillary intercourse: with the penis in the armpit. Commonly known as "bagpiping". Orgasm control: By self or by a partner managing the physical stimulation and sensation connected with the emotional and physiologic excitement levels. Through the practice of masturbation an individual can learn to develop control of their own body's orgasmic response and timing. In partnered stimulation either partner can control their own orgasmic response and timing. With mutual agreement either partner can similarly learn to control or enhance their partner's orgasmic response and timing. Partner stimulation orgasm techniques referred to as expanded orgasm, extended orgasm or orgasm control can be learned and practiced for either partner to refine their control of the orgasmic response of the other. Partners mutually choose which is in control or in response to the other. Orgasmic meditation, is a mindfulness practice where the object of meditation is conscious finger to genital contact. "OMing" is practiced in pairs, with one partner, gently holding the genitals with both hands, and that partner's index finger gently, precisely, slowly stroking the female’s clitoris specifically and with both parties placing their complete awareness mindfully on that localized point of contact between them. Both practitioners focus their fullest attention on their sensitive nerve endings and on their finest muscle control in stroking movement to develop connective (limbic) resonance between practitioners. The outcome, is not simply orgasm but interpersonal connection. The slang term humping may refer to masturbation—thrusting one's genitals against the surface of non-sexual objects, clothed or unclothed; or it may refer to penetrative sex. Genital-genital rubbing Genital-genital rubbing (often termed GG rubbing by primatologists to describe the behavior among female bonobos) is the sexual act of mutually rubbing genitals; it is sometimes grouped with frottage, but other terms, such as non-penetrative sex or outercourse, are also used: Intercrural sex, or interfemoral sex: the penis is placed between the partner's thighs, perhaps rubbing the vulva, scrotum or perineum. Frot or frottage: two males mutually rubbing penises together. Tribadism or tribbing: two females mutually rubbing vulvae together. Docking: mutual masturbation by inserting the glans penis into the foreskin of another penis. Group sex Various people of gender and orientation may participate in group sex. While group sex does not imply that all participants must be in sexual contact with all others simultaneously, some positions are only possible with three or more people. As with the positions listed above, more group sex positions become practical if erotic furniture is used. Threesomes When three people have sex with each other, it is called a threesome. Possible ways of having all