出典:Wikipedia
出典:『Wikipedia』 (2011/05/27 06:57 UTC 版)
Intercrural sex (from "inter-" and Latin "crura", legs), also known as femoral/interfemoral sex/intercourse, or more simply as "the version," is a type of non-penetrative sex, in which a male places his penis between their partner's thighs (often with lubrication), and thrusts to create friction. It is therefore a type of irrumatio.