Commenting on why there are not as many female macrophiles, psychologist Helen Friedman theorized that because women in most societies already view men as dominant and powerful, there no need for them to fantasize about it. Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot may be located. Pornography is often distinguished from erotica, which consists of the portrayal of sexuality with high-art aspirations, focusing also on feelings and emotions, while pornography involves the depiction of acts in a sensational manner, with the entire focus on the physical act, so as to arouse quick intense reactions. The porn industry and viewing public were shocked by the then-taboo spectacle of a white woman having sex with a black man. 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. In the fetish cuckolding subculture, it is most common for the female to take on the sexually nude milfs dominant role and the male the submissive role, however, female subs, sometimes referred to as cuckqueans, also exist. Reality and voyeur pornography, animated videos, and legally prohibited acts also influence the classification of pornography. For example, in Australia it is rated Refused Classification 3d hentai . Oral sex pornography young gay porn frequently features a person performing fellatio, and less frequently cunnilingus. Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination. Bukkake pornography involves a performer, usually female, onto whom several men or women ejaculate, usually on the face. Some people get sexual pleasure by inserting objects, such as urethral sounds, into the urethra , a practice known as urethral play or sounding. Older names for a pornographic film include stag film, and blue movie. A survey by the New York City Department of Health and Mental Hygiene found that heterosexual women are more likely to bareback when engaging in anal sex than homosexual and bisexual men.