Olly Murs says he will never have sex with Caroline Flack.
Olly Murs and Caroline Flack
Although Caroline recently admitted the pair - who host 'The X Factor' together - are "not totally platonic, Olly insisted they will never hook up as it would be too awkward at work if things didn't work out.
He explained: "If it didn't happen three or four years ago then it isn't going to happen now. To be honest, it would mess everything up.
"Say me and Caroline slept with each other, then we had an argument but still had to work together. How would that work? There'd be friction. We'd lose that flirtatious thing, that chemistry."
Olly, 31, also revealed that he and Caroline, 36, are more like siblings than lovers.
He explained to the Daily Mail's Weekend magazine: "We're both quite flirtatious people and yes, we flirt with each other, but that's part of the act, isn't it? But we're mates.
"We just spark off each other. We're more like brother and sister now."
Olly's comments come after Caroline admitted their relationship is hard to define.
She said: "It's a weird chemistry. We have this innate understanding of one another - we don't fancy each other and yet we don't not fancy each other. We're not girlfriend and boyfriend, yet we're not totally platonic either."
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