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Fist-Fucking or fisting, is a sexual practice consisting in penetrating the vagina or the rectum of its (or sound) partner with the hand (or rather the fist, fist in English means fist). Sexology uses the terms of erotism brachiovaginal or brachioproctique. In spite of its name, the fist-fucking does not imply the penetration of the fist closed in the vagina or the rectum, but rather a slow introduction of the hand whose fingers are kept tended and grouped in the opening beforehand abundantly lubricated and gradually distended. Once the introduction carried out, the fist can be closed, or the fingers to remain right.