A vibrator, sometimes described as a massager, is a sex toy that is used on the body to produce pleasurable sexual stimulation. They can be applied to erogenous zones, such as the clitoris, the vulva or vagina, penis, scrotum or anus, for sexual stimulation, for the release of sexual frustration and to achieve orgasm. Couples may also choose to use a vibrator to enhance the pleasure of one or both partners. There are many different shapes and models of vibrators. Some vibrators designed for women stimulate both the clitoris and the vagina, while others are designed for couples to stimulate the genitals of both partners.