Reality and voyeur pornography, animated videos, and legally prohibited acts also influence the classification of pornography. There are number of types of sex parties: Swinger party/gathering A swinger party or partner-swapping party is a gathering at which individuals or couples in a committed relationship can engage in sexual activities with others as a recreational or naked milf social activity. The volume of semen that is ejaculated depends on several factors, including the male health, age, degree of sexual excitement, and the time since his last ejaculation. Coprophilia , also called scatophilia or scat , is the paraphilia involving sexual arousal and pleasure from feces. Women who perform in lesbian pornography often do hentai sex not consider themselves lesbian or bisexual. Group sex most commonly takes place in a private sex party or semi-public swinger gathering, but may also take place at massage parlors or brothels or, in some jurisdictions, at purpose-built locations such as sex clubs. Such ejaculation can be done by mammary intercourse, or masturbation over the other person, or result from the withdrawal of the penis from a partner mouth as he is ejaculating following fellatio, irrumatio, or intercourse. Sadism describes sexual pleasure derived by inflicting pain, degradation, humiliation on another person or causing another person to suffer. A celebrity can fight the release in court to maintain deniability while still enjoying the career benefits. The warm sensation felt when urine trickles on the body seems to give very relaxing and pleasurable feelings to the person. Pornographic films are typically categorized as either softcore or hardcore pornography. They may be noted for using risqué themes, graphic gaysex violence, sexuality or black comedy in a manner that is unsuitable for younger audiences. In S/M, the Sadist is usually the Top and the Masochist the Bottom, but these roles are frequently more complicated or jumbled . Bondage pornography specializes in the depiction of sexual bondage or BDSM activities as photographs, stories, movies, or drawings.