Real jail or prison or police station shots or videos may violate laws in some countries. The rise of the Internet in the late 1990s and early 2000s similarly changed the way pornography film was distributed and furthermore complicated the censorship regimes around the world and the legal prosecution of obscenity. Pornography gay videos is generally classified as either softcore or hardcore pornography. Squirt pornography involves women ejaculating. Now facial cumshots are regularly portrayed in pornographic films, videos, magazines and internet web sites. Facial cum shots are currently regularly portrayed in pornographic films and videos, often as a way to close a scene. Especially popular in post-World War 2 Japanese culture. A variation on this is to place the fingers and thumb on the penis as if playing a flute, and then shuttle them back and forth. Transsexual people Transman pornography features performers who were born female and who medically transitioned to male. The term is a slang word that originated in the gay community and comes from the equestrian term bareback, which refers to the practice of riding a horse without a saddle. This may relate to fetishes such as voyeurism or cuckolding. For legal reasons, the vast majority of so-called reality porn involves professional actors and actresses posing as so-called amateurs. Unlike the traditional definition of the term, in fetish usage a cuckold is complicit in their partner sexual infidelity and takes masochistic sexual pleasure in it. When sexual activity is centered on one of the threesome, then the activity may be described as a gang bang of the person. The nipples are erogenous zones, and vigorous stimulation of them during masturbation usually causes the penis to become erect more quickly than it would otherwise. Even though the performers who perform in these films typically appear on many reality websites within a short span of time, most of these websites claim that each of them is an amateur. Japanese rope bondage is distinguished by its use of specific katas and aesthetic rules.