Examples of mentally oriented practices are education games, during which anime hentai the dominant requires certain forms of young gay porn behavior from the submissive. Hamedori is a genre of Japanese pornography in which a male adult video actor or director serves as the camera operator. Both sexes sometimes apply lubricating substances to intensify sensation. Today, religions vary in their views of masturbation; some view it as a spiritually detrimental practice, some see it as not spiritually detrimental, and others take a situational view. Diaper fetishism, nappy fetishism or diaperism, is a sexual fetish in which a person feels a desire to wear or use diapers. Men may also rub or massage the glans, the rim of the glans, and the frenular delta. New York photographer Irving Klaw also published illustrated adventure/bondage serials by fetish artists Eric Stanton, Gene Bilbrew, Adolfo Ruiz and others. Voyeur pornography may also include shots of topless women on topless beaches who are unaware of the cameras but may legally be photographed due to the public setting. Mutual masturbation, mutual manual stimulation of the genitals between partners, can be a substitute for sexual penetration. Though there have been numerous gang bang pornographic films since the 1980s, they usually involved no more than half a dozen to a dozen momsex men. Fisher said that perhaps, the fleshy, rounded buttocks attracted males during rear-entry intercourse. Macrophilia is a fascination with or a sexual fantasy involving giants, more commonly expressed as giantesses . It is sometimes combined with BDSM features. The term BDSM dates back to 1969; however, the origin of the term BDSM is unclear and is believed to have been formed either from joining the term B&D with S&M , or as a compound initialism from B&D, D&S , and S&M. In the gay pornography industry, which uses amateurs as well as professional actors, the term gay-for-pay refers to actors labeled or believed to be straight but who engage in same-sex sexual activities for money.