Both forms of pornography generally contains nudity. Examples of heterosexual pornographic film series featuring creampies include Cream Filled Teens and Internal Cumbustion. 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. Bisexual DVDs sell much better online than in adult video stores, hentai porn possibly due to customers in stores feeling embarrassed to buy them. Bisexual pornography lesbian milfs is a genre of pornography which most typically depicts one woman and two men who all perform sex acts on each other. Older names for a pornographic film include stag film, and blue movie. However, bisexual pornography is often placed near the gay section in adult video stores, since many consumers are gay men. Likewise, Fox Broadcasting Company has also dedicated an entire evening programming block to adult animation programs, known as Animation Domination. 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. 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 as trampling or crush fetishism. Stimulating the prostate from outside, via pressure on the perineum, can be pleasurable as well. Kinbaku means tight binding Kinbaku-bi which literally means the beauty of tight binding. Mammary intercourse is said by Alex Comfort to produce mutual orgasm in women with sensitive breasts , and it was one of the nine substitute exercises for penetrative sexual activities, as detailed in the Paradis Charnels of 1903. It like associating every Christian with gay cock the zealots who cause religious wars. The term applies to the depiction of the act rather than the act itself, and so does not include live exhibitions like sex shows and striptease.