cut – n. slang for a circumcised penis.
cunnilingus – n. the act of stimulating the female genital area with the tongue
cumshot – n. the act of ejaculation
cuckold – n. a man whose wife has been unfaithful
;} the act of cheating on a spouse.
crurophilia – n. sexual arousal from legs
cross dressing – n. the practice of dressing in clothes traditionally worn by the opposite gender
creampie – n. a type of adult film scene where the man ejaculates inside the woman
cream – n. slang for semen
;} v. slang for the act of ejaculation
crack – n. slang for the vagina or ass
crabs – n. lice which infect the pubic area
cottaging – v. as a homosexual male, to look for another male to have sex with
cornhole – n. slang term for anal intercourse.
;} slang term for the anus.
corn cob – n. slang for a dildo
copulation – n. the act of engaging in sexual intercourse
coprophemia – n. obscene language