Pompoir (/pɒmˈpwɑːr/ POM-PWAR), also known as the Singapore grip, is an ancient sexual technique in which a female sexual partner uses their pelvic floor muscles, particularly the pubococcygeus muscle of the levator ani, to rhythmically stimulate a penis while both partners remain still. The practice emphasizes internal vaginal control to massage the penis with subtle, wave-like contractions, usually performed by a female on top.
The term pompoir is the French transliteration of the Tamil city name "Pahmpur". Originating over 3,000 years ago in India, the practice was performed by Devadasis, female temple attendants skilled in dance and sexual techniques. It spread throughout Asia, particularly among elite escort communities, and was refined in regions like Thailand and Japan.
To understand the mechanics of pompoir, a distinction must be made between the involuntary and voluntary muscle layers that comprise the vagina. The vaginal wall contains a tunica muscularis composed of two layers of smooth muscle, an inner circular layer and an outer longitudinal layer, which are under the control of the autonomic nervous system and cannot be conscientiously activated. The contraction of the involuntary longitudinal muscles shortens and widens the canal, while the contraction of the circular muscles constricts it.
Pompoir relies entirely on the conscious manipulation of the skeletal muscles of the vaginal support structures. These striated muscles can be divided into three distinct functional groups. The first and most superficial group includes the bulbospongiosus and ischiocavernosus muscles, which directly encircle the vaginal introitus and can be contracted voluntarily. The second group comprises the superficial and deep transverse perineal muscles, which support the perineum and run from the ischial tuberosities to the perineal body just behind the vagina. The third and deepest group consists primarily of the levator ani, a collection of muscles that forms the pelvic floor.

A similar exercise, known as "Kegel", was developed in the 1950s by gynecologist Arnold Kegel. In 1952, he created exercises specifically designed for women experiencing urinary incontinence. While Pompoir targets the same muscle group, its primary focus is sexual mastery and pleasure.
Pompoir involves more specific control than traditional Kegel contractions, incorporating three primary motions:

The pompoir techniques are a combination of the advanced and basic moves:
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Although pompoir offers many benefits, it should be practiced under the guidance of a pelvic floor specialist. Overtraining or performing these exercises excessively can increase the risk of incontinence or uterine prolapse in some women.
There is a variant called Kabzah or "Kabza" (Hindi: कब्ज़ा, Urdu: قبضہ, Arabic قبضة), originating from South Asia, in which the woman also uses abdominal muscle contractions to stimulate the partner, who must remain completely passive. The term translates as "holder," and the sensation is likened to "milking." Women reportedly spend years training to master this technique, which is considered highly difficult and is associated with tantric practices to prolong and intensify intercourse.
The title of The Singapore Grip, a novel by J. G. Farrell, as well as its 2020 television adaptation, refers to pompoir. This technique is said to have been practiced by historical figures such as Cleopatra and Wallis Simpson.