Gay sexual practices are involving men who have sex with men (which is called usually MSM), regardless of their sexual orientation or sexual identity. The authors of the Kinsey Reports state that there was at least one homosexual experience among 37% of their male subjects. Evidence shows that sex between men is significantly underreported in surveys due to social desirability bias. Gay pornography represents a sexual activity among men. On porn sites, there are special categories with gay videos or whole channels like a gay male tube. It is being done for heterosexual female and homosexual male audience. There is also a type of gay porn called softcore gay pornography. Even though pornography is most often connected with and focused on heterosexuality because of the fact that this orientation is the leading one, the art of homoerotic started years ago and has its origin in Greek antiquity.The production of gay vid expended mostly during the 1970s. There were few porn studios that recorded videos for the growing number of gay adults enjoying men having sexual encounters. Very often, the movies showed the liberation of gay men at that time and many different places where they had sex like bathhouses, sex clubs, beaches, etc. Participants of a survey done by Escoffier said that they want an authentic gey porn, where they can see erections and orgasm. The authenticity of so-called gay-for-pay porn is disputed even in the gay community. There is a small argument on the topic if straight actors can deliver erections and orgasms to the set and their performances are rather taken as a situational homosexuality. It is said that all of the gay porn videos are done by learned behavioral sex scripts so actually, there is no porn that is 100% authentic. Actors or amateurs who are starting their journey with gay porn say that they choose the career because of the homosexual fantasy they recently discovered but also because of the curiosity. Fans of that kind of porn videos can find separate categories on porn websites.