Crush pornography features objects being crushed by an actress or actor, who generally plays an overtly dominant role. In the West, masturbation in private or with a partner is generally considered a normal and healthy big tit milf part of sexual enjoyment. It is geared gaysex towards heterosexual men, who most typically define a threesome as such. Mutual masturbation, mutual manual stimulation of the genitals between partners, can be a substitute for sexual penetration. Clothed female, naked male pornography features naked men and clothed women; typically, the women humiliate and abuse the men or perform fellatio and/or handjobs on the men. Real school shots or videos which are sexualized may violate privacy laws in some countries. Solo performances in gay pornography have been described in 1985 as either or both active and/or passive , whereas female solo performances are said to be exclusively passive . Perhaps following the example set by gay pornography, they have become a popular subgenre within heterosexual pornography since the turn of the century, featuring both vaginal and anal ejaculations. Sexual orientation Pornography features an increasing variety of combinations of actors by their sexual orientation such as lesbian, gay, bisexual, and transsexuals in addition to traditional heterosexual roles. Common phrases used to refer to these individuals are chicks with dicks or the derogatory term shemale, although these are generally considered pejorative 3d hentai among transwomen. Certain websites have begun providing bondage videos and photographs featuring the kidnapping roleplay, which has been largely the hallmark of detective style bondage magazines. Yuri : Featuring two grown adult women in a homosexual/lesbian relationship. Specific sex acts Anal Anal pornography features anal penetration with a penis, dildo, other objects, or some combination of them. Bondage pornography specializes in the depiction of sexual bondage or BDSM activities as photographs, stories, movies, or drawings.