Another hamster mobile porn variant of reality pornography consists of normal couples that are filmed by professionals, in which case the only obvious distinction from amateur pornography is the higher quality of production, filming and editing. The effect is to give the viewer the sense that they are experiencing the sex acts that they are watching, as opposed to simply watching others as a voyeur. In the 1970s, the hardcore pornography genre introduced the stereotypical cumshot scene as a central element of the hardcore film, in which the male actor ejaculates in a way ensuring maximum visibility of the act itself. Emetophilia lesbian hentai pornography involving vomiting and gagging. Actors are mostly amateur; any well-known actors in bisexual porn tend to be from the gay pornography industry. The consent and compliance for a sadomasochistic situation can be granted only by people who can judge the potential results. See Gay-for-pay. In recent years, Japanese films of this genre have become more common in the USA and Europe although it still remains a small, fetish-oriented part of the adult film industry. The term hentai is never used in this context in Japanese. Unlike Yaoi, Bara is normally made by actual homosexual men, for homosexual men, and tends to focus on the more realistic obstacles and challenges that come with being homosexual in Japan. Now facial cumshots are regularly nude milfs portrayed in pornographic films, videos, magazines and internet web sites. Watersports pornography features sexual activities involving urine, such as golden showers. Transsexual people Transman pornography features performers who gay fuck were born female and who medically transitioned to male. Insertion in pornography features women inserting various odd objects into their anus or vaginas. These scenes may either have the cameraman directly engaging in sex or merely filming others having sex. Unlike erotic films, pornographic films contain explicit sexuality and do not claim hentai porn games any artistic merit. Bukkake pornography usually depicts numerous men having sex with one woman, with multiple, usually 10 or more, men ejaculating on the female face.