Embattled Manchester United legendary star Ryan Giggs, once regarded as one of the most clean-cut characters in football, has now been branded a dirty dog by his own relatives after details of his secret affair with his brother’s wife surfaced yesterday.

Giggs has been battling to save his marriage which has been rocked by his affair with Big Brother star Imogen Thomas that he tried to cover up with a controversial super-injunction. Embroiled in the notorious  Imogen scandal and already facing shame and humiliation, Giggs’ image has now been reduced to tatters with the latest scandal.

Ryan Giggs & Imogen Thomas

Yesterday love rat Ryan Giggs stood accused of the ultimate act of betrayal – after sensational claims that he had an eight-year affair with his brother Rhodri’s wife Natasha.

Natasha Giggs, 28, said she slept with the Man United ace for eight years as they betrayed her husband Rhodri and Giggs’ missus, Stacey.

A devastated Rhodri Giggs, 34, was last night struggling to come to terms with the bombshell news of the betrayed by both his brother and his wife of ten months.

Last night, Rhodri told how he and Natasha had split up following the shock revelations that his brother Ryan had bedded his wife for 8 years. He said: “I was with her on Saturday – but I’m not with her now.”

Giggs’ disgusted aunt Joanna Wilson stormed: “He’s just a dirty dog.” Joanna, sister of Ryan and Rhodri’s father Danny Wilson, said: “It’s horrendous. He has no morals. It was one thing having an affair with Imogen, but this is said to be with his brother’s wife, for God’s sake.”

Speaking at her home in Ely, Cardiff, she added: “I could almost understand if it was someone else, another footballer’s wife – then so what? But not with his own sister-in-law. And it went on for such a long time. It is horrendous and we are all gutted for Rhodri.”

Joanna, 49, said she also felt sorry for dad-of-two Giggs’ unsuspecting wife Stacey Cooke, 32, saying: “She should kick his a*** and take him for every single penny he’s got.”

Some family members are now asking whether Ryan, 37, could be the father of his own nephew – Rhodri and Natasha’s son conceived in the middle of her affair with the multi-millionaire player.

A source close to the couple said: “Rhodri had no idea what was going on and of course there are now questions who the real father is.

“That’s what everyone will be asking. He looks just like Rhodri – but then the two brothers also look very similar.”

Natasha, 28, is now expected to have a DNA test to determine the father.

Even after the birth of his own children, Giggs – whose reputation was built around his family man image – is said to have continued to see Natasha in secret and reportedly slept with her as recently as April 9.

Ryan Giggs & his brother's wife Natasha

Natasha revealed that she was a 20-yeare-old single mother when she first met Giggs in Manchester nightclub Sugar Lounge in 2003. Stacey, who was then his fiancée, was already pregnant with their first child. Riggs apparently bought Natasha drinks and complimented her appearance before taking her number and allegedly asking her to meet him the following night. The following night they went to the Living Room bar, where Natasha also met Ryan’s brother Rhodri. The trio continued onto another club and then dined at a Chinese restaurant for a meal before all heading back to a friend’s house where Natasha allegedly first slept with Ryan.

After that night, Giggs kept in touch with Natasha and regularly meet up with her to have sex. But in May 2003, Natasha started dating his brother Rhodri and two months later Ryan apparently stopped contacting her. They met up at a New Year party at his mother’s house though and Ryan apparently pretended to Stacey that he didn’t know Natasha. After that they didn’t see each other for a year but Ryan contacted her once again to resume the alleged affair in the autumn of 2004, pursuing her for sex and sending her graphic text messages. They had their trysts at hotels in the Manchester area as well as in empty houses and flats she had access to through her job as an estate agent.

Meanwhile, Rhodri proposed to Natasha in 2005 and Ryan was meant to be his best man. Natasha fell pregnant to Rhodri later that year, but is claimed to have still slept with Ryan during a charity golf tournament in June 2006. But as the alleged affair didn’t come out, Rhodri and Natasha finally tied the knots in Las Vegas in 2010, but with another pal Will Mellor stepping in as best man instead of Ryan.

Natasha & Rhodri Giggs

Natasha had sex with Giggs the day after his eight-year-old daughter was born, and again the day after his four-year-old son was born, while his wife Stacey was still in hospital.

Yesterday it emerged Natasha only decided to come clean after confronting Ryan about his relationship with Big Brother star Imogen Thomas– an affair he tried to hide behind an ill-fated injunction.

After she challenged him, he is said to have sent her a text saying: “What the f*** u going on about? This has been the worst 2 weeks of my life!!!”

Natasha reportedly told a friend: “His response was completely selfish. But then I’ve discovered that Ryan only ever thinks about himself. I honestly thought he felt a lot about me and respected me – but clearly he didn’t. Our relationship was just about sex for him.”

She said: “I knew it was wrong. It’s the worst possible betrayal. I tried to end it but my relationship with Ryan was like an addiction.

“Anything he said, I did. If he wanted me to drop everything to meet him, I would. I couldn’t say no. But Ryan never told me he loved me. It was all about sex.”

But after learning about Giggs and Imogen, she told a pal: “He wasn’t just cheating on Stacey, he was cheating on me too.”

She says she was deeply hurt when she heard rumours of his affair with Imogen, adding: “I know that sounds strange, but he wasn’t just cheating on Stacey – he was cheating on me too.”

“Ryan and I have already had an affair for eight years. It’s a terrible secret I’ve had to keep for too long now. I don’t want it weighing on my conscience any more. I don’t want to have to carry on lying.”

Over the weekend Natasha is believed to have left a note confessing all before going into hiding. A family friend said: “Rhodri is devastated – he just can’t get his head round it.

“Natasha just wrote him a letter and disappeared, she didn’t even tell him face to face. He says she’s ruined his life.”

According to the friend, Giggs has called Rhodri – but is still claiming the alleged affair never happened. The friend said: “Ryan called him but he’s still denying everything at the minute.

“Rhodri is disgusted with him. Natasha was at her son’s birthday party on Saturday and then didn’t return with the kids.

“She’s left the country and it’s Rhodri who’s been left to deal with all the fall-out on his own.”

His previous lover Imogen wrote on Twitter yesterday: “I just wanna curl up and die today.”

Delivery van driver Rhodri has told friends he may now spill the beans on “the real Ryan Giggs”.

One pal said: “He’s devastated and can’t believe the extent of his humiliation – by both of them.

“Rhodri said, ‘I know me and Ryan have had our ups and downs but this is the lowest of the low’.

Natasha’s stepfather Paul Lever, 53, said news of his daughter’s relationship with Giggs – which began in March 2003 and only ended on April 9 this year – had come as a shock.

Speaking from the family home in Worsley, Greater Manchester – the village where Giggs lives in a Ł4million mansion – Mr Lever said: “Natasha is gutted. But not half as much as Rhodri will be. It is just an awful situation.”

The Giggs brothers’ father Danny Wilson was also rocked by the news. Former Swinton rugby league player Danny, 55, told The Sun two weeks ago he remained supportive of Ryan despite his cheating with Imogen.

He said then: “I’m deeply disappointed at Ryan but I’m still as proud of him as I have always been. I hope he gets over it.”

Yesterday he was too upset to speak at his Cardiff home.

A friend said: “In Danny’s eyes it’s much worse than the Imogen thing. It’s taken it to a different level.”

Meanwhile Giggs was in Spain fighting to save his marriage to Stacey Cooke, 32, who has been reeling from the news of Giggs’ fling with Imogen. He flew by private jet from Manchester to join Stacey and their two children Libby, eight, and Zach, four, before the latest scandal broke.

Ryan Giggs & wife Stacey

Unicef ambassador Giggs, made an OBE in 2007 and BBC Sports Personality of the Year in 2009, previously claimed his family was “the most important thing to me”.

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