sex /seks/ n. 性行为，性交；性，性别；雄性，雌性；性器官（用于小说中避免更粗俗或更露骨的措词） sex with animals v. 辨别…的性别，辨识…的雌雄；<非正式> 引起……的性欲 Vaginal sex (penis-in-vagina intercourse) Oral sex (mouth-to-genital contact ) [blowjob] Anal sex (penis-in-butt intercourse) Fingering or hand jobs (hand-to-genital contact) Dry humping or genital rubbing Masturbation (touching yourself)