Advocates of RACK argue that SSC can hamper discussion of risk because no activity is truly safe, and that discussion of even low-risk possibilities is necessary for truly informed consent. The actual height of the giantess within the fantasy may vary depending on the individual. Bondage pornography specializes in the depiction of sexual bondage or BDSM activities as photographs, stories, movies, or drawings. Many cultures describe pain as an aphrodisiac. For instance, Amateur Allure has a trademark shot where the sexually performing cameraman circles a handycam around the sexually performing model head. It has also been recommended as a form of foreplay or safer sex. As a result, little in history was documented to give an accurate description of how female homosexuality is expressed. New York photographer Irving Klaw also published illustrated adventure/bondage serials by fetish artists Eric Stanton, Gene Bilbrew, Adolfo Ruiz and others. Because the viewing of such films carried a social stigma, they were viewed at brothels, adult movie theaters, stag parties, at home, in private clubs and also at night cinemas. Content horny milfs featuring male bisexuality has been a growing trend since the advent of internet pornography. Such ejaculation can be done by mammary intercourse, or masturbation over the other person, or result from the withdrawal of the penis from a partner gay boy porn mouth as he is ejaculating following fellatio, irrumatio, or intercourse. Common phrases used to refer to these individuals are chicks with dicks or the derogatory term shemale, although these are generally considered pejorative among transwomen. Rainbow party A rainbow party is an urban legend spread from the early 2000s. Animal masturbation has been observed in many species, both in the wild and in anime hentai captivity. Since the 1980s, many practitioners and organizations have adopted the motto safe, sane and consensual, commonly abbreviated as SSC, which means that everything is based on safe activities, that all participants be of sufficiently sound/sane mind to consent, and that all participants do consent.