London, Aug 5 (IANS): Singer Harry Styles reportedly took elder sister Gemma to Las Vegas and took care of her expenses because she topped her exams in the university.

Styles, 19, also gave Gemma, 22, the freedom to shop and took care of her expenses in the sin city, reports dailystar.co.uk.

"Harry is giving Gemma a massive treat for getting a first at the Sheffield Uni. He’s so proud of her as she’s worked really hard to get top grades and deserves to have some fun," a source said.

“He flew her to Las Vegas and has put her in a posh suite at every stop on the tour," the source added.

Styles, member of One Direction band, is currently on the US leg of Take Me Home tour and will not feel homesick with Gemma around him.

“Gemma loves hanging out with her brother and keeping an eye on him. Harry is in awe of her because she’s so brainy and got a First, plus the highest marks in the year," a source said.

“He gets homesick sometimes while on tour, so it’s great for him to have her there for a while too," a source added.