There are numerous sex positions that participants may adopt in any of these types of sexual intercourse or acts; some authors have argued that the number of sex positions is essentially limitless. 102 Eric Berne, Sex in Human Loving (1974). The penetrating partner sits on an area surface, legs outstretched. Reay, Donald.; John. The penetrating partner stands in front of the receiving partner, whose legs dangle over the edge of a bed or some other platform like a table. This position is sometimes called the reverse cowboy or reverse cowgirl position. The receiving partner can bring forward their knees against the ground. Docking : mutual masturbation by inserting the glans penis into the foreskin of another penis. The penetrating partner places their feet on each side of the receiving partner while keeping their knees bent and effectively raising up as high as possible while maintaining penetration. "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 females clitoris specifically and with both parties placing their complete awareness mindfully on that localized point of contact between them. Not to be confused with nightstand. The rusty bike pump is similar to a piledriver where penetration is achieved from above at a downward angle with the receiving partner bottom side. The penetrating partner sits on edge of a bed or chair with feet spread wide on floor. Frances, Joann Perrino, Designing Infidelity: A Reference Guide to the Art of Cheating to Perfection (2006. Anal sex between two men in the missionary position In the missionary positions, to achieve optimal alignment, the receiving partner's legs should be in the air with the knees drawn towards their chest. The receiving partner can squat (instead of kneel) facing the penetrating partner. Penetration may involve use of fingers, toes, sex toys, or penises. Some of the positions below are popular positions for sex during pregnancy. The penetrating partner faces the receiver, straddling the receiver's lower leg, and lifts the receiver's upper leg on either side of the body onto the crook of penetrating partner's elbow or onto the shoulder. Genital-genital rubbing Main articles: Intercrural sex, Frot, and Tribadism Genital-genital rubbing (often termed GG rubbing by primatologists to describe the behavior among female bonobos 32 33 ) is the sexual act of mutually rubbing genitals; it is sometimes grouped with frottage, but other terms, such.