Rak-Su's Myles Stephenson has been flirting up a storm with an 'X Factor' researcher.

Rak-Su

Rak-Su

The group have cemented themselves as firm fan favourites on the ITV show but Myles has reportedly got his eye on researcher Demi Kaye .

A source told The Sun newspaper: "Their flirting has become a big talking point in the contestants' house and has been noticed by some of the crew. It's against the rules and now bosses have given her a ticking off. Demi seems very taken with Myles' charm and they've been hanging out together at the contestants' house.

"They've struck up a real connection and have been spending all their free time together, but have already been warned not to take their flirting any further. Rak-Su are the favourites and Simon Cowell's priority. He doesn't want anything getting in the way of their focus."

Myles - who recently split from his long term girlfriend Rebecca Bignell - has been a big hit with the ladies since the band first auditioned for the show. He even tried to flirt with Cheryl Tweedy - who helped their mentor Simon Cowell choose to put the group through when they were at Judges Houses - before being amicably warned off by her boyfriend Liam Payne.