Lucky Pierre is slang for a person performing both receptive and insertive anal and/or vaginal sex simultaneously during a threesome, being positioned between the two partners. Pornography in the early 2000s. Several hundred exclusively pegging films were produced, as well as twice as many bisexual and straight films with strap-on scenes. The term discipline describes psychological restraining, with the use of rules and punishment to control overt behavior. Other objects such as ball point pens and thermometers are sometimes used, although this practice can lead to injury and/or infection. Transgender pornography features performers who cross-dress for sexual gratification, either for themselves or for their partners. The phrase is commonly found on porn sites. Incest pornography can feature actual relatives, but the main type of this pornography simply uses actors of similar looks to suggest family relationship. The object or situation of interest is called the fetish; the person who has a fetish for that object/situation is a fetishist. This fetish sometimes originates from childhood memories of needing, or of seeing another needing, to urinate. Hardcore pornography is pornography that depicts hentai movies penetration or extreme fetish acts, or both. Rape pornography features performers simulating rape. The scenario is a genre of erotica, which on the internet is sometimes abbreviated to CMNF, and may involve sexual and nonsexual erotic scenarios. The wife who enjoys cuckolding her husband is frequently called a hotwife, or a cuckoldress videos gays if the man is more submissive. There has been an increase in discussion and portrayal of masturbation in art, popular music, television, films, milf fuck and literature. These agreements are binding in the sense that the parties have the expectation that the negotiated rules will be followed. It is also known colloquially as gushing or squirting, although these are considered to be different phenomena in some research publications. Kinbaku means tight binding Kinbaku-bi which literally means the beauty of tight binding.