Myleene Klass has revealed she caught her ex-husband cheating on her with another celebrity at her own birthday party.

The 47-year-old TV presenter said she walked in on the moment the former Hear’Say bodyguard, Graham Quinn, and the female star were taking each other’s clothes off on the balcony of her own home.

The Loose Women panelist hinted that the person in question is a celebrity known for ‘family values’ as she refused to identify the woman.

Myleene first started going out with her Irish bodyguard in 2001 and they were together for 12 years before divorcing in 2013.

Speaking on Paul Brunson’s We Need To Talk podcast, the mother-of-two said: ‘I walked in on him with a famous person on my birthday on a balcony.’

According to the TV presenter, the pair tried to claim that it wasn’t what it looked like and she continued: ‘I’m in my house, it’s my party. They weren’t having sex, but they were unzipping each other.

‘“It’s not what you think”. But I’m like, “It is what I think”.

‘It’s the first thing they both said. I kicked everyone out of the party, including his mum and dad. They went back to Ireland and his dad said: “He doesn’t get it from me”.

‘I remember thinking that was quite a weird thing to say,’ she told the love expert.

The Irish bodyguard tried to blame the affair on being drunk.

Graham and Myleene married for two years and share two children Ava, 17, and Hero, 13.