The term discipline describes psychological restraining, with the use of rules and punishment to control overt behavior. As of 2013, little analysis of this paraphilia has been reported in medical literature. Sadomasochism does not imply enjoyment through causing or receiving pain in other situations . Reality Reality pornography refers to real or faked amateur encounters. However, the tradition of bondage magazines continues in the form of art books of bondage photographs, published by mainstream publishers such as Taschen. Sometimes special furniture is used, such as a queening stool or smotherbox. Sex experts have praised various techniques that the performer can use during fellatio to increase their partner pleasure. Other possibilities are possible, such as a man having sex with two women who are having sex with each other. Within a BDSM or D/s context, facesitting can be an especially intense form of erotic humiliation. The rise of the Internet in the late 1990s and early 2000s similarly changed the way pornography film was distributed and furthermore complicated the censorship regimes around the world and the legal prosecution of obscenity. The current record is held by Lisa Sparks who had sex with 919 men on October 16, 2004 in Warsaw, Poland as part of the Third Annual World Gangbang Championship and Eroticon 2004. Shemale is a term primarily used in sex work to describe gay twink porn a trans woman with male genitalia combined hentai movies with female secondary sex characteristics, usually including augmented female breasts, from breast augmentation and/or use of hormones. BDSM is a variety of erotic practices involving milf xxx dominance and submission, role-playing, restraint, and other interpersonal dynamics. Bottom and submissive are widely recognized terms for those partner in the relationship or activity who are, respectively, the physically receptive or controlled participants. Clothed female, naked male is a genre of erotica featuring one or more nude men and one or more clothed women.