Even with bisexuals standing as the largest segment of the LGBT community, the notion that bisexuality doesn’t exist persists. A 2011 study published in Biological Psychology arguably debunks this by studying the physical arousal of gay, straight, and bisexual men in reponse to various types of pornography. Indeed, it found that gay men physically reacted to gay porn and straight men to straight porn, but not vice versa. And of course, it found that bisexuals were aroused to varying degrees by porn with straight sex or gay sex. Perhaps most significantly, bisexual men reacted more strongly than straights or gays when watching pornography where individuals had sex with both men and women, such as threesomes.