Big Beautiful Woman is a euphemism for an overweight woman and is frequently used in the context of fat fetishism. Fantasies of group sex are extremely common among both men and women, and group sex is a subgenre in pornographic films. There is no singular or archetypical behavior; therefore, a wide range of thought patterns and behaviors exist, but all tends to be a harmless and efficacious release from some kind of pressure. Such films continued to be produced but could only be distributed by underground channels. Cum-shot pornography features a collection of male ejaculation scenes. The term lesbian is also used with regard to sexual identity or sexual behavior, regardless of sexual orientation, or as an adjective to characterize or associate nouns with female homosexuality or same-sex attraction. Hentai is the various forms of Japanese pornography, including H-manga, H-anime, and H-computer hentai videos games. The person receiving anilingus is regarded as the passive partner in the act, and the person performing anilingus is the active partner. It is commonly depicted in pornography, but very rarely in mainstream cinema. The term discipline describes psychological restraining, with the use of rules and punishment to control overt behavior. As in B/D, the declaration of the Top/Bottom may be required, though sadomasochists may also play without any Power Exchange at all, with both partners equally in control of the play. Each participant may engage in any type of sex acts with one or both of the others, such as vaginal, anal or oral sex or mutual masturbation. Crying pornography that features participating actors crying. For other scenes, particularly in established relationships, a safeword may be agreed to signify a warning rather gaysex than explicit withdrawal of consent; and a few choose not to big tit milf use a safeword at all. Mammary intercourse is said by Alex Comfort to produce mutual orgasm in women with sensitive breasts , and it was one of the nine substitute exercises for penetrative sexual activities, as detailed in the Paradis Charnels of 1903.