N-Dubz’s Dappy cheated on partner Kaye Vassell with Cassie Johnson?

N-Dubz’s Dappy has reportedly lived up to his bad boy reputation and cheated on his partner with a model.

21 year old Cassie Johnson claims that the 23 year old – real name Costadinos Contostavlo – slept with her after they met during a night out in Tup Tup Palace nightclub in Newcastle upon Tyne.

Dappy has two children with his partner Kaye Vassell but Cassie described their night of passion to The News Of The World, saying:

“It wasn’t the best sex I’ve ever had. I know Dappy gets women throwing themselves at him so I think he was surprised when I woke up next morning, refused to give him my number and said I didn’t want to see him again.

“He was quite selfish in bed, taking the time to please himself without worrying about what I wanted. To be honest, I got bored and just wanted to doze off. I left soon after waking next day.

“I regretted sleeping with Dappy and forgot all about it until months later when N-Dubz were at the club again. This time Fazer gave me the eye. But I didn’t want another disappointment so I just stayed with my mates, away from the VIP area.”

Cassie also claimed that she had no idea that Dappy already had a girlfriend and explained that he didn’t mention his partner at all. She added:

“I’d just broken up with my boyfriend and was out with a couple of friends looking for fun. I’d no idea Dappy had a girlfriend until I saw something about him on TV a few weeks later.

“It was exciting to meet Dappy. But I think he’s spoilt by women falling at his feet. He thinks he’s something amazing, but he’s not.”