The person receiving anilingus is regarded as the passive partner hentai sex in the act, and the person performing anilingus is the active partner. Bondage/BDSM Bondage pornography features performers tied up or constrained in various ways. A female dominant in a master/slave relationship is often termed a Mistress, not to be confused with the colloquial gay twink porn usage of mistress as a kept sexual partner without a similarly formalized power relationship. Sadomasochism does not imply enjoyment through causing or receiving pain in other situations . The related term twinkle-toes, which implies that a man is effeminate, tends to be used in a derogatory manner. Most soft crush fetishists avoid being placed under the same label as hard crush fetishists, believing that crush films with larger animals give the entire group a bad label. Women porn is often produced by women and aimed specifically mature milfs at the female market - rejecting the view that men are turned on by porn but women only by a box of chocolates. The term lesbian is also used with regard to sexual identity or sexual behavior, regardless of sexual orientation, or as an adjective to characterize or associate nouns with female homosexuality or same-sex attraction. Entacle erotica describes a type of pornography most commonly found in Japan which integrates traditional pornography with elements of bestiality and a fantasy, horror, or science-fiction theme. Mutual masturbation can be practiced by males or females in pairs or groups with or without actually touching another person as indicated by the following examples of contact versus non-contact scenarios: Non-contact mutual masturbation Two people masturbating in the presence of each other but not touching. Tentacle rape or shokushu goukan is found in some horror or hentai titles, with tentacled creatures having sexual intercourse with female characters. The term applies to the depiction of the act rather than the act itself, and so does not include live exhibitions like sex shows and striptease.