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Sexual stimulation is any stimulus (including, but not limited to, bodily contact) that leads to, enhances and maintains sexual arousal, and may lead to orgasm. Although sexual arousal may arise without stimulation, achieving orgasm usually requires physical sexual stimulation.
The term sexual stimulation often implies stimulation of the genitals, but may also include stimulation of other areas of the body, stimulation of the senses (such as sight or hearing) and mental stimulation (i.e. from reading or fantasizing). Sufficient stimulation of the penis in males and the clitoris in females usually results in an orgasm. Stimulation can be by self (e.g. masturbation) or by a partner (sexual intercourse or other sexual activity), by use of objects or tools, or by some combination of these methods.
Physical sexual stimulation
Physical sexual stimulation usually consists of the touching of parts of the human body, especially erogenous zones. Masturbation, sexual intercourse, a handjob or fingering are types of physical sexual stimulation. Physiological reactions are usually triggered through sensitive nerves in these body parts, which cause the release of pleasure-causing chemicals that act as mental rewards to pursue such stimulation. Physical sexual stimulation may also involve the touching of other people's body parts and may trigger similar physiological reactions.
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- Based on "masturbation" in Merriam-Webster's Collegiate Dictionary, Eleventh Edition, Merriam-Webster, Inc., 2003
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