Having sex more often than most people.

When two or more people masturbate in each other’s presence.

The pear-shaped, muscular reproductive organ from which women menstruate and where normal pregnancy develops. Also called the “womb.”

The period of physical and emotional change between the beginning of puberty and early adulthood.

A protein developed by the immune system in response to a toxin introduced into the body.

Having no desire for sex with a partner.

Removal of the testicles. See "chemical castration."

A soft rubber dome intended to fit securely over the cervix. Used with contraceptive cream or jelly, the diaphragm is a reversible barrier method of birth control available only by prescription.

A kind of miscarriage in which some pregnancy tissue passes out of the uterus but some stays inside. Can also occur following a pregnancy termination procedure. Sometimes treatment is needed to remove the remaining tissue.

Touching one’s own body and sex organs for sexual pleasure.