During an orgasm, the body releases sexual tension that has built up during the first two phases of the sexual response cycle. The following things happen throughout the body during an orgasm:

• Heart rate, blood pressure, and breathing rate increase.
• Hormones, such as dopamine and oxytocin, are released into the bloodstream.
• Muscles in the genitals and anus rhythmically contract repeatedly, about once per second for several seconds.

For females, the muscles in the vagina and anus may contract roughly once per second, for around five to eight times. The vagina may become wet, and it may even ejaculate fluid. After an orgasm, the face, neck, or chest may flush, and people may feel sleepy, relaxed, or happy due to a release of endorphins.

Orgasm is a complex psychological and biological experience, and reaching and experiencing orgasm is not the same for every person.