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[S]timulation of the penis using the buttocks, often used as a form of mutual masturbation. It differs from anal sex because no penetration of the anus occurs. The penis is stimulated by moving between the buttocks.
Learn more about intergluteal sex from Wikipedia.
First published on 05/01/2015 and last updated on 12/26/2017
你年满18岁了吗？
有一天你会成年。 在此之前，随意浏览没有图像。 等待！ 我18岁或以上。
