The celeb gossip phrase is commonly found on porn sites. Hardcore pornography is pornography that depicts penetration or extreme fetish acts, or both. Mammary intercourse is said by Alex Comfort to produce mutual orgasm in women with sensitive breasts , and it was one of the nine substitute exercises for penetrative sexual activities, as detailed in the Paradis Charnels of 1903. Women oriented pornography is sometimes referred to as sex positive pornography. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. This can, however, redirect semen into the bladder . The porn industry and viewing public were shocked by the then-taboo spectacle of a white woman having sex with a black man. A variation on this is to place the fingers and thumb on the penis as if playing a flute, and then shuttle them back hentai movies and forth. Starting with erotic stories and woodblock prints from before the 20th century, Japanese pornography evolved into distinct subcategories with the media that in addition of pornographic videos and magazines featuring live actors, there is exist categories of pornographic manga , pornographic computer games , and pornographic anime . Bara male homosexual hentai designed gay boy porn to appeal to men. Pregnancy fetishism is a context where pregnancy is seen by adult anime individuals or cultures as an erotic phenomenon. The range of its individual characteristics is thereby wide. Shibari is a Japanese word that literally means to tie or to bind. Women in homosexual relationships responded to this designation either by hiding their personal lives or accepting the label of outcast and creating a subculture and identity that developed in Europe and the United States. Creampie scenes depart from heterosexual pornographic convention in favor of a depiction that more closely mimics sexual intercourse as performed in ordinary life; they have been called the counterimage of facials. A sub-set of vaginal fisting attempts to photograph the female cervix immediately after the fist is removed from the now-gaping vagina.