A variant of A2M is ATOM where a performer inserts his penis directly from one recipient anus into a second recipient mouth. Pornography is often distinguished from erotica, which consists of the portrayal gayporn 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. Mammary intercourse is a sex act, performed as foreplay or as non-penetrative sex, that involves the stimulation of the male penis by the female breasts and vice versa. 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. Most soft crush fetishists avoid being placed under the same label as hard crush fetishists, believing that crush films with larger animals give the entire group a bad label. For uncircumcised males, stimulation of the penis in this way comes from the pumping of the foreskin, in which the foreskin is held and slid up and down over the glans, which depending on foreskin length, is completely or partially covered and then uncovered in a rapid motion. However, bisexual pornography is often placed near the gay section in adult video stores, since many consumers are gay men. Depictions of male and female masturbation are common in pornography, including gay pornography. The porn industry and viewing public were shocked by the then-taboo spectacle of a white woman having sex with a black man. There may be more than two participants; both group sex and gang banging can be included. Clothes wetting: The person is sexually aroused by wetting one clothing or observing another person doing so. The name is a reference to gonzo journalism, in which the reporter is part of the event taking place. Often, strong views are expressed with regard to anal sex; it is controversial in various cultures, especially with regard to religion, commonly due to prohibitions against anal sex among gay men or teachings about the procreative purpose of sexual activity.