sexual intercourse
any act or set of actions performed for reproduction, sexual pleasure or both
group sex
sexual behavior involving more than two participants
transactional sex
sexual relationships involving gifts, money, or other services
adultery
extramarital sex without the consent of the married participant's spouse
bestiality
practice of sexual activity between humans and non-human animals, criminalised in many jurisdictions and of dubious ethics
quickie
brief or spontaneous episode of sexual activity
safe sex
ways to reduce the risk of unwanted pregnancy or acquiring STDs
consummation
first sex act as part of a marriage or relationship
underwater sex
sexual intercourse in water
tantric sex
highly restricted sexual practices found in Hindu and Buddhist tantra
makeup sex
informal term for sexual intercourse which may be experienced after conflict (ranging from minor arguments to relationship breakups) in an intimate personal relationship
Sex with donkey
Sexual relations between humans and donkeys
penile-vaginal intercourse
sexual activity typically involving the insertion and thrusting of the penis into the vagina for sexual pleasure, reproduction, or both
sexual assault
act of coercing or physically forcing a person to engage in sexual activity
anonymous sex
sex between unknown individuals
car sex
sexual activity that takes place in a car
casual sex
certain types of human sexual activity outside the context of a romantic relationship
extramarital sex
sexual intercourse outside a marriage
pearl necklace
sexual act in which a sex partner ejaculates semen on or near the neck, chest, or breast of another sex partner
anal intercourse
insertion and thrusting of the erect penis into a person's anus, or anus and rectum, for sexual pleasure