One of the biggest sex dictionaries you'll find on the net. 1938 terms defined, collected from many sources. Unusual sexual practices, slang, medical terms, perversions, historical facts, positions, tantra, you'll find it all here, from A to Z.
Here are some random samples:
Arousal from contact with buttocks
One Night Stand
Slang for a one time sexual encounter.
Person aroused by smell of urine or by sniffing underwear
A birth control technique where the penis is removed from the vagina before ejaculation.
To know someone sexually, usually referring to sexual intercourse.
Term used to refer to intimacies and sexual interactions that take place after the climax of sexual activity. See Foreplay.
Arousal from being buried alive
A female who prefers sexual activity with members of the same sex.
A fetish practice where an adult role-plays being an infant, wearing baby clothing and sometimes being disciplined by a mother figure.
Sexually Transmitted Diseases
Any disease - such as syphilis, gonorrhea, herpes, genital warts or AIDS - which can be passed to another person during sexual activity.