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Index/Topics/Definition of Sex

Definition of Sex

The definition of sex, including its biological, social, and legal aspects

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Jan 29, 2026
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What are safe practices and communication tips for partners when penis size causes discomfort?

When causes discomfort, the primary goals are immediate physical safety and preserving trust; practical steps—slowing down, more foreplay, lubrication, shallow positions, and devices—reduce pain, whil...

Jan 20, 2026

SEX

Sex most commonly denotes the biological classification of organisms into categories such as male and female based on reproductive anatomy and gamete production, but the term is also used in legal, me...