Older names for a pornographic film include stag film, and blue movie. Bondage websites and bondage imagery in mainstream pornography As of 2003, specialist bondage magazines were mostly displaced by the availability of bondage material on the World Wide Web, and the presence of bondage imagery in mainstream pornographic magazines such as Nugget and Hustler Taboo magazine. Mammary intercourse is a sex act, performed as foreplay or as non-penetrative sex, that involves the stimulation of the male penis by the female breasts and vice versa. Hardcore pornography is pornography that depicts penetration or extreme fetish acts, or both. Hermaphrodite, also known as herm, refers to pornography, typically hentai, that features persons with the genitalia of both sexes. Bestiality is illegal in many countries. It is sometimes combined with BDSM features. John Stagliano is considered to have started the gonzo pornography genre with his Buttman series of films. Rainbow parties were covered on The Oprah Winfrey Show in 2003, and became the subject of a juvenile novel called Rainbow Party. Internal ejaculation shots are a comparatively recent development in pornography; they are not found in early pornographic films. As a result, little in history was documented to give an accurate description of how female homosexuality is expressed. Barebacking usually refers to a conscious and deliberate choice to forgo condoms. For circumcised males, on whom the glans is mostly or completely uncovered, this technique creates more direct contact between the hand and the glans. For hentai porn much of the history of cinema and television, lesbianism was considered taboo, though since the 1960s it has increasingly become a genre in its own right. Some women who engage milf fuck in same-sex sexual activity may reject not only identifying as lesbians but as bisexual as well, while other women self-identification as lesbian may not align with their sexual orientation or sexual behavior; gay movies sexual identity is not necessarily the same as one sexual orientation or sexual behavior, due to various reasons, such as the fear of identifying their sexual orientation in a homophobic setting.