Sexual behavior in the context of Lascivious behavior

A sexual fantasy, or erotic fantasy, is an autoerotic mental image or pattern of thought that stirs a person's sexuality and can create or enhance sexual arousal. A sexual fantasy can be created by the person's imagination or memory, and may be triggered autonomously or by external stimulation such as erotic literature or pornography, a physical object, or sexual attraction to another person. Anything that may give rise to sexual arousal may also produce a sexual fantasy, and sexual arousal may in turn give rise to fantasies.

Sexual fantasies are nearly universal, being reported in many societies across the globe. However, because of the nature of some fantasies, the actual putting of such fantasies into action is far less common, due to cultural, social, moral, and religious constraints. In some cases, even a discussion by a person of sexual fantasies is subject to social taboos and inhibitions. Some people find it convenient to act out fantasies through sexual roleplay. A fantasy may be a positive or negative experience, or even both. It may be in response to a past experience and can influence future sexual behavior. A person may not wish to enact a sexual fantasy in real life, and since the process is entirely imaginary, they are not limited to acceptable or practical fantasies, which can provide information on the psychological processes behind sexual behavior.

Sexual abuse or sex abuse is abusive sexual behavior by one person upon another. It is often perpetrated using physical force, or by taking advantage of another. It often consists of a persistent pattern of sexual assaults. The offender is referred to as a sexual abuser. Live streaming sexual abuse involves trafficking and coerced sexual acts, or rape, in real time on webcam.

Molestation refers to an instance of sexual assault, especially when perpetrated against a child. The perpetrator is called (often pejoratively) a molester. The term also covers behavior by an adult or older adolescent towards a child to sexually stimulate any of the involved. The use of a child for sexual stimulation is referred to as child sexual abuse and, for pubescent or post-pubescent individuals younger than the age of consent, statutory rape.

Sexual fluidity is one or more changes in sexuality or sexual identity (sometimes known as sexual orientation identity). Sexual orientation is stable for the vast majority of people, but some research indicates that some people may experience change in their sexual orientation, and this is more likely for women than men. There is no scientific evidence that sexual orientation can be changed through psychotherapy. Sexual identity can change throughout an individual's life, and does not have to align with biological sex, sexual behavior, or actual sexual orientation.

According to scientific consensus, sexual orientation is not a choice. Although no single theory on the cause of sexual orientation has yet gained widespread support, scientists favor biological theories, especially for explaining male sexual orientation. Research over several decades has demonstrated that sexual orientation can be at any point along a continuum, from exclusive attraction to the opposite sex to exclusive attraction to the same sex.