Bukkake pornography involves a performer, usually female, onto whom several men or women ejaculate, usually on the face. Both sexes sometimes apply lubricating substances to intensify sensation. For example, in Australia it is rated Refused Classification . Diaper fetishism is totally independent from pedophilia as the wearer derives pleasure only from the diaper and/or use of it. Point of view pornography is adult entertainment filmed to look as if the watcher were experiencing milf xxx the sex act themselves. Although there may be no connection between coprophilia and sadomasochism , the limited data on the former videos porno gay comes from studies of the latter. Particular areas and processes of the body that change during pregnancy may also become the focus of psychological investment, but nudity or sexual activity is not always essential, and in some cases actual pregnancy is not necessary to invoke arousal. Use of the agreed safeword is seen by some as an explicit withdrawal of consent. Solo pornography recognized with AVN Awards include the All Alone series and All Natural: Glamour Solos. Group sex pornography features at least two men and two women , usually more, who all perform sex acts on each other. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex. The existence lesbian hentai of such content in commercially available pornography is widely considered an urban legend. In S/M, the Sadist is usually the Top and the Masochist the Bottom, but these roles are frequently more complicated or jumbled . Sexual relations between women have been illustrated as well as narrated, but much of the written material from the early modern period has been destroyed. Compensating elements of the total dominance and submission are care and devotion complementing one another, thus facilitating stable relationships. Other fetish Bareback pornography features performers who are not wearing condoms. Preggo pornography features pregnant performers and may include erotic lactation as a fetish.