UK based boyband One Direction have revealed that they're all great friends and are very comfortable with each other, especially now after all these years. 

During an interview with OK! magazine recently, Louis Tomlinson was asked if he and the rest of the lads have seen each other naked and joked: "That happened in the first few weeks!"

He went on to talk about their relationship with each other and explained that they are very close friends and to the point where they can push each other's buttons, but not let it affect them on a bigger scale: "Yes it's exactly that sort of [brotherly] relationship. There are days I wake up and wind Zayn up, but the next day we're best of friends."

Speaking about their tour bus habits, the heartthrob confessed that it's very typical of the behavior you might expect from a group of 5 guys: "We're all disgusting boys really! Untidy, burping..."

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Watch the boyband's new trailer for their upcoming 'Night Changes' music video below: