Performers are usually clean-shaven, thinner and more effeminate than ones in mainstream gay pornography. Consent is the most important criterion here. Real enema shots hentai sex or videos of true medical situations horny milfs may violate privacy laws in some countries. In many cases, that person is also aroused by smelling body parts that have a urine scent. The interaction between tops and bottoms—where physical or mental control of the bottom is surrendered to the top—is sometimes known as power exchange, whether in the context of an encounter or a relationship. Pornographic films present sexual fantasies and usually include erotically stimulating material such as nudity. The Japanese sex industry uses the term Paizuri . Bobbi S. First found in softcore movies and erotic thrillers, depictions of lesbianism entered mainstream cinema in the 1980s. This category also includes pornographic home movies. Fistees who are more experienced may take two fists . Teacher and Student or Boss and Secretary pornography involves sexualized situations which take place between an authority figure, such as a teacher or boss, and an underling, such as a student or secretary, often fake. 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 videos gays or same-sex attraction. Voyeur or peeping Tom pornography is usually more staged with the subjects aware of the cameras, sometimes openly including this exhibitionist awareness. Central to the typical MILF narrative is an age-play dynamic of older women and younger lovers. In recent years, Japanese films of this genre have become more common in the USA and Europe although it still remains a small, fetish-oriented part of the adult film industry. The terms can be complimentary or pejorative. It may also involve touching, rubbing, or pinching the nipples or other erogenous zones while masturbating. Bareback sex is physical sexual activity, especially sexual penetration, without the use of a condom.