Nick Cannon Girlfriend & Cheating Rumors: Spotted with Mystery Blonde at Sushi Dinner

Cheating has allegedly been the cause of Nick Cannon and Mariah Carey's impending divorce. But from the way it looks, Nick may have gotten over his separation from Mariah but not yet with his moonlighting habits.

This time, Nick may be cheating on rumored girlfriend Amber Rose.

Fashion Times reported that Mariah's estranged husband was spotted having a sushi dinner at Matsuhisa with a mystery woman and a hot blonde at that.

Nick reportedly came to Matsushisa to join former "Americal Idol" judge Randy Jackson and the mystery blonde for dinner.

But Randy left early, leaving the "Wild N Out" creator and the mystery blonde hanging out for another hour.

Media Take Out also confirmed the sighting and sensed that something strange is happening after Nick snuck out of the Japanese restaurant through its private exit. The mystery blonde, on the other hand, was reportedly picked up by a friend a short time later.

On August 21, Nick and Mariah formally announced their split, ending four years of marriage and leaving their three-year-old twins Moroccan and Monroe in quagmire. Cannon expressed concern on how their children would be affected by the breakup, recounts the Fashion Times report.

Amber, who claims that he and Nick are only on a business relationship, has also filed for divorced from husband Wiz Khalifa.

"Even though Amber Rose is trying to blame Wiz Khalifa for the end of their marriage, Wiz is throwing Amber's business relationship with Nick in her face," reports Celebrity Dirty Laundry.

Both Nick and Amber are now being very careful being seen in public and Amber continues to deny cheating allegations, reports Celebrity Dirty Laundry.

More than the risk of being accused as cheaters, it's the prenup agreements of both Nick and Amber with their respective exes that are actually at stake. Should their alleged affair go public, they can kiss all that money goodbye, opines Celebrity Dirty Laundry.

With the mystery blonde now in the picture and if rumors are true, Amber may be having a bad week.