Danny Cipriani has admitted cheating on Kelly Brook, even playing away as his gorgeous girlfriend nursed him back to health after he was hit by a double decker bus.

The rugby hunk was reportedly forced to spill after model Kelly discovered explicit sex texts to sales manager Stacey Simcox on his phone dating back eight months.

Curvy Kelly, 33, swiftly booted him out of her house after discovering the messages, which reportedly begged Stacey to meet him for sex after the rugby ace returned from a romantic holiday with Kelly.

Stacey told The Sun: "He’d send me filthy messages about what he wanted to do to me and begging to meet up for sex.

(Image: Twitter)

"It got progressively more explicit and I just thought, ‘What a rat’. He’s going out with one of the most stunning and successful women in Britain.

"I just couldn’t understand why he’d stray. Every man fancies Kelly, but that obviously wasn’t enough for Danny."

Actress Kelly is thought to have discovered her boyfriend’s cheating ways last weekend and after a furious row kicked him out of her house, according to The Sun.

They have not spoken since.

(Image: TWITTER)

A source said Danny is determined to win her back but pals say they have “no idea” if she would ever consider forgiving him.

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Kelly, who is a constant presence on Twitter, last week posted pictures of her and Danny on holiday in Greece - she has since deleted the snaps.

She has also removed pictures of the pair from her Twitter and Instagram accounts.

In April Kelly nursed boyfriend Danny back to health after he was hit by a bus in Leeds on a drunken rugby tour, tweeting that she was lovingly feeding him chicken soup.

But as Kelly was nursing Danny, the charmer was allegedly sending pictures of his injuries to Stacey.

Danny and Kelly dated for two years in 2008 before rekindling their romance this year after the model's split from another rugby hunk Thom Evans.

Cheating rumours began after Katie Price told 3am she had proof Danny Cipriani had cheated on Kelly and would prove it in her tell-all autobiography.

(Image: WENN)

Asked who should be worried about her new book, pregnant Katie simply replied: "Danny Cipriani".

And the former glamour model even tweeted Kelly: "@IAMKELLYBROOK ask Danny about his emails and texts sent to me behind your back which I'll show you. Kieran agrees he will never be faithful."

3am has contacted Danny and Kelly for a comment.