The fundamental principles for the exercise of BDSM require that it should be performed with the informed consent of all involved parties. When sexual activity is centered on one of the threesome, then the activity may be described as a gang bang of the person. Squirt pornography involves women ejaculating. Bondage is usually, but not always, a sexual practice. In these cases, the appearance of an enlarged abdomen caused by obesity or overeating lesbian hentai may be sufficient, or simply the suggestion of a protruding navel. Cum-shot pornography features a collection of male ejaculation scenes. As amateurs in a single segment of a multi-part video, the actresses are typically paid only about 50,000 yen . Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. Actors are mostly amateur; any well-known actors in bisexual porn tend to be from the gay pornography momporn industry. RACK may be seen as focusing primarily upon awareness and informed consent, rather than accepted safe practices. The padding may also muffle noises from the outside, causing a relaxation effect and heightening their other senses. Although macrophilia literally translates to simply a lover of gay cock large, in the context of a sexual fantasy it is used to mean someone who attracted to beings larger than themselves. Common phrases used to refer to these individuals are chicks with dicks, trannies, or shemales, although these are generally considered pejorative slurs among transwomen. Technically this is a form of exhibitionism rather than group sex per se. Said that the female buttocks evolved in the context of females competing for the attention and parental commitment of powerful resource-controlling males as an honest display of fat reserves that could not be confused with another type of tissue, although T. Well-known female porn stars who expressed their pleasure in pegging their male partners include Taylor Wane, Debi Diamond, Brittany Andrews, and Monique Covét.