Theyv'e not said why it was rated so strongly, the British censor made it 15 as it had them looking at a gay porn mag, the dildo and maybe the kiss
The kiss had nothing to do with it. It was rated 15 because of occasional strong language including a number of discriminatory terms, verbal and visual sex references (the porn mag and the dildo), men wearing bondage clothing, drug use and mild violence. http://www.bbfc.co.uk/releases/pride-2014
I would like to see the MPAA give such information about their ratings decisions. Though, it was rated R, which means children under 17 can still watch it if they are accompanied by an adult.