Arguably the most famous example of the genre is the Taboo series. Gaping in pornography refers to scenes of anal sex with a focus on the recipient’s anus remaining open for a period of time after the erect penis or dildo is removed. Human urinal: An act common in the bondage sex community where a male or female slave will serve as a urinal for a dominant partner. As with most forms of sexual activity, anal sex participants risk contracting sexually transmitted infections . The shocker accomplishes this using several fingers of one hand. The sub-genres usually conform to certain conventions, and each may appeal to a particular audience. Interracial pornography typically employs ethnic and racial stereotypes in its depiction of performers and many of interracial pornographic films still include racial stereotypes, although the segregation of actors by race mature milfs has diminished considerably. Solo pornography features performers masturbating. Pornography is generally classified as either softcore or hardcore pornography. The surfacing of sex tapes has become so common that some are leaked as a marketing tool to advance or establish a media career. One is in a vertical side of the box for the neck of the person who has their head inside the hentai sex smotherbox. Using the term shemale for a transsexual woman often implies that she is working in the sex trade. It is distinguished from these concepts in that the cuckold thrill in their partner acts is specifically masochistic; as such it is considered a category of BDSM fetish. Men and women may masturbate until they are close to orgasm, stop for a while to reduce excitement, and then resume masturbating. Felching involves drinking recently ejaculated semen from the vagina or anus. These typically are leaked to the public via the Internet, with or without the celebrity consent. The person sat upon may be in bondage, sexually submissive, or simply held down by the body-weight of the other person. POV pornography involves camera angles designed to provide the viewer videos gays a view similar to that seen by one of the participants, whose face is never shown.