It might be time for Cody Simpson to step into the overprotective big brother role!

The Aussie popstar’s little sister Alli appears to be pretty taken by One Direction hottie Harry Styles!

The 14-year-old model sent directioners everywhere into a jealous frenzy after posting a cosy snap of the pair together on Twitter, along with the caption, “What An Amazing Lad.”

The pretty blonde, who was lucky enough to interview the lothario for Radio Disney, also appears to be a big fan of the singer’s music...

“1D CONCERTTT BAAABYYY,” she raved, with a pic of herself at their US gig last week.

But, it seems it’s not just Harry who’s caught her eye...

Confessing to having a bit of a soft spot for his bandmates too, she wrote on her official blog,

“Niall, Louis, Zayn, Liam and Harry are all incredibly funny guys with cute personalities. Not too bad looking either!”

Written by Sophie Barnett

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