Assuming the only content under that hashtag is porn is biphobia Twitter.
Be better.' Alexis Sergio added: 'Twitter blocking Lesbian and Bisexual is all about fetishing of female sexuality.
'We exist as porn or we don't exist at all.' Others claimed that the issue was due to the term 'bisexual' being automatically linked to porn.
Alexis Sergio added: 'Twitter blocking Lesbian and Bisexual is all about fetishing of female sexuality'Speaking to BBC Newsbeat, Kate Harrad, of campaign group The Bisexual Index said that bisexual people have 'historically been hypersexualised and associated with porn and promiscuity'.
Scroll down for video While over two per cent of the UK and US now class themselves as bisexual, Twitter appears to have blocked the search term on its site.