Solo pornography recognized with AVN Awards include the All Alone series and All Natural: Glamour Solos. Among swinging couples, one of the two partners is often the driving force and the other is more passive-supportive of the addition of additional sex parties. Diaper pornography involves performers wearing diapers, sometimes with an adult performer acting in the role of a caretaker. Specific sex acts Anal Anal pornography features anal penetration with a penis, dildo, other objects, or some combination of them. Some people get sexual pleasure by inserting objects, such as urethral sounds, into the urethra , a practice known as urethral play or sounding. The term BDSM dates back to 1969; however, the origin of the term BDSM is unclear and is believed to have been formed either from joining the term B&D with S&M , or as a compound initialism from B&D, D&S , and S&M. A woman can use a secondary vibrator, between the dildo and her genitals, to get pleasure from pegging. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex. Internationally, hentai is a catch-all term to describe a genre of anime and manga pornography. Bestiality is illegal in many countries. Femdom features BDSM scenes in which the dominant partner is female. On the other hand, the masochist enjoys being hurt, humiliated, or suffering within the consensual scenario. They may regard it as an enhancing element of their sex lives or as their primary form of sexual activity. Pro-am pornography is sub-genre of amateur pornography that refers to professionally hentai sex made porn that features amateur actors/actresses, often appearing for the first time in a pornographic film. Interactive pornography, available in CD-ROM and DVD format, allows the viewer to select the big tit milf naked celebrities particular acts performed at any one time, sometimes with the camera providing a first person view. Two women tapegagged and cuffed to iron bars Bondage and Discipline are two aspects of BDSM that do not seem to relate to each other gay twink porn because of the type of activities involved, but they have conceptual similarities, and that is why they appear celebrity news jointly.