Louis Tomlinson has turned to his teenage sister for a shoulder to cry on following his split from Eleanor Calder.
The couple's four-year relationship ended earlier this month and Louis' younger sister Lottie - who's been touring with One Direction - has been on hand to provide emotional support for her 23-year-old sibling.
A source explained to the Daily Mirror newspaper: "Lottie has always been close to Louis, so it's great for him to have her there while on the road.
"It's been a tough time for him, and Lottie - who was also close to Eleanor - understands him better than anyone.
"She's an aspiring make-up artist, so she's also been getting great experience on the tour with the band's hairdresser, Lou Teasdale."
Meanwhile, a source recently blamed Louis' hectic work schedule for the breakdown of his relationship.
And despite Eleanor making a 10,500-mile trip from London to Sydney, Australia, the pair were unable to reconcile their issues and decided to end their romance.
A source said: "Cracks were showing for a while. It's incredibly tough with the boys being on the road so much.
"They had a month off over Christmas but since then they have been in Australia and the Far East. It put a real strain on the relationship.
"But even after Eleanor flew out to visit Louis, they couldn't work through their differences."