Bondage is usually, but not always, a sexual practice. Technically this is a form of exhibitionism rather than group sex per se. Moreover, many gay or bisexual men who star in gay porn films may wish to be identified publicly as heterosexual videos porno gay for personal or professional reasons. Though the term anal sex most commonly means penile-anal penetration, sources sometimes use the term anal intercourse to refer exclusively to penile-anal penetration, and anal sex to refer to any form of anal sexual activity, especially between pairings as opposed to anal masturbation. This practice has a distinct effect of immobilization and pain. This scene dynamic may be referred to as consensual nonconsent. Felching involves drinking recently ejaculated semen from the vagina or anus. Cum shots have become the object of fetish genres like bukkake. Bukkake videos are a relatively prevalent niche in contemporary pornographic films. Fisting involves the insertion of one partner entire hand into a vagina or the anal cavity. The term has as its origins Frantz Fanon epidermal schema and Edward Said Orientalism. In these cases, the appearance of an enlarged abdomen caused by obesity or overeating may be sufficient, or simply the suggestion of a protruding navel. Some couples use a threesome as horny milfs a way to develop a love triangle . Fat fetishism also incorporates stuffing and padding, whereas the focus of arousal is on the sensations and properties of a real or simulated gain. In a bath or shower a female may direct tap water at her clitoris and vulva. Incest pornography is a genre of pornography involving the depiction of incest . Other forms of anal sex include fingering, the hentai porn use of sex toys for anal penetration, oral sex performed on the anus , and pegging. It generally contains nudity or partial nudity in sexually suggestive situations. Yaoi : Featuring two grown adult men in a homosexual/gay relationship. Erotic spanking is the act of spanking another person for the sexual arousal or gratification of either or both parties.