Individuals are also sometimes abbreviated when referred to in writing, so a dominant person may be referred to as a Dom for a man, and a Domme for a woman. Other possibilities are possible, such as a man having sex with two women who are having sex with each other. Related genres include: Amateur pornography originally referred only to pornography produced by amateurs but now also includes professionally made pornography designed porn milf to appear as if it were amateur. Omorashi: The act of anime hentai holding one own urine until the need to urinate is urgent, making another hold in their urine, or watching another person with an urgent need to urinate. Especially popular in post-World War 2 Japanese culture. Since development and pronunciation of the buttocks begins at menarche and declines with age, full buttocks are also a symbol of youth. The term Asiaphile is sometimes used to describe the same phenomenon as is yellow fever . The wife who enjoys cuckolding her husband is frequently called a hotwife, gay fuck or a cuckoldress if the man is more submissive. 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. Celebrity sex tapes are amateur or professionally-made recordings of sex acts, as performed by a celebrity and their partner. Many men who like trans partners of any variety, known as tranny chasers, do not necessarily identify as gay themselves. Often, strong views are expressed with regard to anal sex; it is controversial in various cultures, especially with regard to religion, commonly due to prohibitions against anal sex among gay men or teachings about the procreative purpose of sexual activity. This industry employs thousands of performers along with support and production staff. For legal reasons, the vast majority of so-called reality porn involves professional actors and actresses posing as so-called amateurs. Gloryhole pornography features women performing fellatio on unidentified men through a small hole made in a bathroom divider.