性交 (英語: sexual intercourse)也称 交媾 (coitus),通常指 阴道性交 (vaginal intercourse)或 阴道性爱 (vaginal sex) [1][2],是指男性將 勃起 狀態的 陰莖 跟女性 陰道. Sex refers to physical and biological traits—whereas gender refers especially to social or cultural traits—and the physiological and psychological processes related to procreation and sexual. From attraction to action, sexual behavior takes many forms.
In general use in many languages, the term sex is often used to mean “sexual activity”, but for technical purposes in the context of sexuality and sexual health discussions,. A few things you've always wanted to know about sex: As pioneering sex researcher alfred kinsey put it, the only universal in human sexuality is variability itself.
Learn about topics such as how to masturbate better (for women, men & folks of all genders), how to make sex better, how to have an orgasm (for women), and more with our helpful. 同义词: sexual intercourse, intercourse, sexual relations, relations, coitus, 更多…… 习惯性搭配: [good, bad, great, fantastic, disappointing] sex, sex up the [movie, book, story, plot],. Why we enjoy it, how to explain it, and, importantly, how flowers do it.