1 关系: 性交。
性交
性交(Sexual intercourse),或稱性交媾,也被人們稱為陰道交(vaginal sex)或阴道性交(vaginal intercourse),指的是將一般為勃起狀態的陰莖跟陰道互相接合及在內磨擦的過程,主要目的是为了令自身獲得性快感、繁殖下一代Sexual intercourse most commonly means penile–vaginal penetration for sexual pleasure and/or sexual reproduction; dictionary sources state that it especially means this, and scholarly sources over the years agree.