Mouth spreader

The mouth spreader is also called a mouth lock and is a special form of a gag.

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Masturbation

Masturbation is the sexual stimulation of one's genitals for the purpose of sexual pleasure and horniness, usually leading to climax.

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Missionary position

The missionary position is one of many possible sex positions. The woman lies on her back with her legs spread apart and usually bent.

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Monogamy

Monogamy is a form of (couple) relationship in which a person has only one and the same partner during their lifetime.

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