Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot may be located. The prostate gland is one of the organs that contributes fluid to semen. The other person may do the same during or after. Threesome can also hot gay sex refer to a love triangle, a three-way romantic relationship. Cuckold fetish pornography that involves a cuckolded husband. 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 . Pussing: British expression for an activity involving a consenting couple where the male partner watches the woman urinate otherwise undetected in a semi-public place, usually a toilet cubicle at a pub, hotel, restaurant, theatre/cinema, office, club etc. Barebacking usually refers to a conscious and deliberate choice to forgo condoms. 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. 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 because of the type of activities involved, but they have conceptual similarities, and that is why they appear jointly. The range of its individual characteristics is thereby wide. Adult animation is genre of animation geared towards adults and sometimes teens. Animal masturbation has been observed in many species, both in the wild and in captivity. Hardcore pornography is pornography that depicts penetration or extreme fetish naked milf acts, or both. 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 gay hentai the term B&D with S&M , or as a compound initialism from B&D, D&S , and S&M.