Cheeky charmer Olly Murs might not keep his promise of marrying Xtra Factor co-host Caroline Flack when they hit 40 as he's hoping he won't still be single be then.

The 'Dance With Me Tonight' heartthrob previously explained that he has such great chemistry with Flack both on and off-screen that it would make sense to pair up if their love lives don't materialise elsewhere.

However, Murs, 28, is hoping he'll meet the love of his life before then.

He told New! magazine: "Hopefully I won't be single at 40. But I'm very good at keeping things under wraps. I've not been a nun! I've been on a few recent dates, yes. It's all early days! I only just had a day off for the first time in four weeks yesterday, so that says it all. I am trying to keep that going."

He added: "There's only so many times I can read 'Fifty Shades Of Grey'... every guy should read that!"

Murs also revealed that he worries "all the time" about kiss'n'tells on his romantic life.

He explained: "If a girl did a story about me I'd be disappointed. I'd be worried if the girl was married and stuff and I hadn't known at the time. And if she said I was a three or four out of ten I'd be really gutted...."