DJ Peter Rosenberg has revealed Amber Rose caught Wiz Khalifa cheating on her with twin sisters Jas and Ness Rose, both of whom are fashion designers.

DJ Peter Rosenberg - a close friend of the 30-year-old model - claims she walked in on her husband with fashion designers Jas and Ness Rose in their family home before they decided to end their relationship. He said: ''Amber walked in on him with two women at the same time. Twins, twin sisters, twin biological sisters.''

However, the DJ admitted the couple - who have 19-month-old son Sebastian together - had been unhappy for some time, though his friend hoped they could work through their problems once Wiz, 27, had finished touring.

He told US radio station Hot 97: ''I believe from my relationship with Amber, that she knew they had problems, she knew he wasn't happy - she wasn't happy either - but she was also like, 'He's touring, he's going through a lot, and at some point we're going to work on this again.''

And Peter also dismissed suggestions the infidelity occurred at a property Wiz acquired after moving out of the couple's home. He explained: ''It was a home. It wasn't some new home that was just his. It was a home that he had. That she slept in. That's how she got in.

She had a key. This wasn't some separate thing. It's a place she goes to.'' Peter went on to blast allegations Amber was having an affair with Mariah Carey's estranged husband Nick Cannon, 33.

He added: ''She signed with NCredible, Nick Cannon's company. She would never then sleep with the dude that she signed with.'' Amber, who married the 'We Dem Boyz' rapper in 2013, filed for divorce last week.