Bisexual pornography is a genre of pornography which most typically depicts one woman and two men who all perform sex acts on each other. Transsexual pornography is a genre of pornography. Usually that person prefers to stage the wetting so that his/her legs become soaked with urine. As of 2013, little analysis of this paraphilia has been reported in medical literature. For circumcised males, on whom the glans is mostly or completely uncovered, this technique creates more direct contact between the hand and the glans. Kinbaku means tight binding Kinbaku-bi which literally means the beauty of tight binding. It is sometimes combined with BDSM features. 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. Threesome can also refer to a love triangle, a three-way naked milf romantic relationship. Terminology for roles varies widely within the various BDSM subcultures. Foot fetish pornography features heavy emphasis on the feet of the participants, either in combination with kissing and genital sex or in the context of acts such hentai videos as trampling or crush fetishism. hentai porn videos Bondage/BDSM Bondage pornography features performers tied up or constrained in various ways. Gay-for-pay describes male or female actors, pornographic stars, or sex workers who self-identify as heterosexual but who are paid to act or perform as homosexual professionally. A sub-set of vaginal fisting attempts to photograph the female cervix immediately after the fist is removed from the now-gaping vagina. People may engage in anilingus for its own sake, before anal fingering or penetration, videos gays or as part of foreplay. The concept of lesbian, to differentiate women with a shared sexual orientation, is a 20th-century construct. Tentacle rape or shokushu gaysex goukan is found in some horror or hentai titles, with tentacled creatures having sexual intercourse with female characters.