Intercrural sex
Intercrural sex, which is also known as coitus interfemoris, thigh sex, thighing, thighjob and interfemoral sex, is a type of non-penetrative sex in which the penis is placed between the receiving partner's thighs and friction is generated via thrusting. It was a common practice in ancient Greek society prior to the early centuries AD, and was frequently discussed by writers and portrayed in artwork such as vases.