[Solved] Define and discuss Cost of Service Pricing. Sexually Explicit Texts: Written material that contains graphic descriptions of sexual acts or content, intended to arouse. Sexts: Sexually explicit messages, photographs, or videos sent electronically, typically via mobile phones. Erotic Plasticity: The degree to which one's sex drive can be changed by social, cultural, and situational factors. Sexual Urges: Innate, biological impulses driving individuals towards sexual activity or behavior, influenced by a combination of physiological, psychological, and social factors.