Individuals are also sometimes abbreviated when referred to in writing, so a dominant person may be referred to as a Dom for a man, and a Domme for a woman. Men may also rub or massage the glans, the rim of the glans, and the frenular delta. Specific sex acts Anal Anal pornography features anal penetration with a penis, dildo, other objects, or some combination of them. Cuckold fetish pornography horny milfs that involves a celebrity sex tapes cuckolded husband. Mammary intercourse is known as titty-fucking, titfuck, or a titjob in the United States, as well as tit wank or French fuck in the United Kingdom - the latter term dating back to the 1930s; while a more jocular young gay porn equivalent is a trip down mammary lane. In modern BDSM vernacular, the queening s hentai porn videos tool allows open access to the crotch while seated. Additionally, the buttocks give an indication of the shape and size of the pelvis, which impacts reproductive capability. The first explicit pegging scene is believed to have been in the 1975 pornographic film The Opening of Misty Beethoven. Sadomasochism is practiced in isolation relatively rarely, though some masochists report biting, pinching, or even stun-gunning themselves as a prelude to, or as part of, masturbation. This is commonly called double vaginal penetration or double stuffing. Bondage websites and bondage imagery in mainstream pornography As of 2003, specialist bondage magazines were mostly displaced by the availability of bondage material on the World Wide Web, hentai porn and the presence of bondage imagery in mainstream pornographic magazines such as Nugget and Hustler Taboo magazine. 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. Though there have been numerous gang bang pornographic films since the 1980s, they usually involved no more than half a dozen to a dozen men. The name is a reference to gonzo journalism, in which the reporter is part of the event taking place. Both sexes sometimes apply lubricating substances to intensify sensation.