Some pornographic films use an artificial semen substitute to simulate or enhance creampie shots. Internationally, hentai is a catch-all term to describe a genre of anime and manga pornography. 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. The mouth was the most common area to be ejaculated upon. Activities range from a spontaneous smack on bare buttocks during a sexual activity, to occasional sexual roleplay, such as ageplay, to domestic discipline and may involve the use of a hand or the use of a variety of spanking implements, such as a spanking paddle or cane. Following World War II, during a period of social repression when governments actively gay hentai persecuted homosexuals, women developed networks to socialize with and educate each other. Some intend to create situations where others can see their wet clothing. A study of 164 males in Finland from two SM clubs found that 18.2% had engaged in coprophilia; 3% as a sadist, 6.1% as a masochist, and 9.1% as both. 18% of heterosexuals and 17% of homosexuals in the study pool had tried coprophilia, showing no statistically significant difference between heterosexuals and homosexuals. Among fetishists, the pose of reluctance—the victimization of the cuckold—is a major element of the paraphilia. Cum shots typically do not appear in girl-girl scenes and orgasm is normally implied by utterances, cinematic conventions, or body movement. Low et naked milf al. Yuri : Featuring two grown gay twinks adult women in a homosexual/lesbian relationship. Pegging films include Strap It On , Babes Balling Boys , Strap Attack, Strap-on Sirenz, Strap-on Chicks, Boss Bitches , various movies produced by LEDA Studios, and San Francisco-based Men In Pain. Women who adopt a lesbian identity share experiences that form an outlook similar to an ethnic identity: as homosexuals, they are unified by the heterosexist discrimination and potential rejection they face from their families, friends, and others as a result of homophobia.