Throughout history, women have not had the same freedom or independence to pursue homosexual relationships as men, but neither have they met the same harsh punishment as homosexual men in some societies. It is typically animated pornography, as the legal age to be featured in a pornographic film in Japan is 18. Arcane or occult pornography involves sexualized situations with an occult or magical tone or performers who costume themselves in keeping with the theme, for example, a male performer dressed as a wizard. Masturbation is the self-sexual stimulation of the genitals for sexual arousal or other sexual pleasure, usually to the point of orgasm. Rainbow party A rainbow party is an urban legend spread from the early 2000s. Incest itself is largely taboo, and is a crime in many countries. Types of anal sex can also be a part of lesbian sexual practices. Other fetish Bareback pornography features performers who are not videos gays wearing hentai porn condoms. The most common type of erotic spanking is administered on the bare buttocks, but can also be combined with bondage, in order to heighten sexual arousal and feelings of helplessness. A related term used in the genre is the term cougar, which implies an older woman as predator. Compensating elements of the total dominance and submission are care and devotion complementing one another, thus facilitating stable relationships. The term pearl necklace is used by some because the drops of semen deposited by the man resemble a necklace of translucent white pearls. However, bisexual pornography is often placed near the gay section in adult video stores, since many consumers are gay men. Jerk off instruction features a performer encouraging or instructing the viewer to masturbate, often culminating in a countdown at the end of which the viewer is invited to induce orgasm. Bestiality is illegal in many countries. Internal ejaculation shots are a comparatively recent development in pornography; they are not found in early pornographic films. When used as an alternative to penile-vaginal penetration, the goal may be to preserve virginity or to prevent pregnancy.