The industry generally refers to such films as adult films, which is part of adult entertainment. Positions can also be chosen specifically for added effects such as increased humiliation, elevation and suspension. As a form of non-penetrative sex, it can be done for its own enjoyment or as foreplay. Mutual masturbation foreplay The manual stimulation of each other genitals where the session eventually leads to sexual intercourse. In some creampie films, both gay and straight, intercourse and internal ejaculation are followed by performers licking up the semen that has dripped from their bodies. In humans, females generally have more round and voluptuous buttocks, caused by estrogen that encourages the body to store fat in the buttocks, hips, and thighs. In the Diagnostic and Statistical Manual of Mental Disorders , published by the American Psychiatric Association, it is classified under 302.89 – Paraphilia NOS and has no diagnostic criteria other than a general statement about paraphilias that says the diagnosis is made if the behavior, sexual urges, or fantasies cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. Many transgender people regard the term shemale young gay porn as offensive, arguing that it mocks or shows a lack of respect towards the gender identity and gender expression of transgender individuals; in this view, the term emphasizes the biological sex of a person and neglects their gender. Internationally, hentai momsex is a catch-all term to describe a genre of anime and manga pornography. A spanking may be carried out with the use of a bare or gloved hand, or with any of a variety of implements, including a paddle, strap, hairbrush, feather duster lesbian hentai or belt. Typically features adult, masculine men with varying degrees of muscle, body fat, and body hair, akin to beefcakes, or bears. Sadism describes sexual pleasure derived by inflicting pain, degradation, humiliation on another person or causing another person to suffer.