Iggy Azalea swaps phones with Nick Young on nights out.

The 'Fancy' hitmaker reportedly ''flipped out'' when the 29-year-old LA Lakers player was photographed leaving a nightclub with two other women in January in the vintage Chevy Impala she gave him and believes he won't be tempted to get numbers from other girls if he has her phone.

A source told US OK! magazine: ''Iggy felt completely disrespected. Everyone told her that she would have to face infidelity issues if she started dating an athlete, and now she's learning to deal with that.

''She says he wouldn't have the nerve to give out his number to another woman, knowing that Iggy has his phone at home.''

The couple recently moved into a house in Tarzana, California and Nick admitted he hopes to marry the 24-year-old Australian rapper in the future.

He said: ''Me and Iggy just bought a house. We've been getting really close lately. I've never been with somebody like this.''

Asked if they have talked about tying the knot, he added: ''It's come up a couple times.''

The couple have been dating for more than year and despite being very happy together, they still ''argue all the time.''

He said: ''We fight over the TV remote because she watches TLC and the Weather Channel all night. We argue all the time, but we get it worked out. We understand each other.''

He added: ''I like shopping a lot, but Iggy's been on my back saying I should get a stylist. She picked out my outfit for the ESPY [Awards] and everybody loved it, so now she thinks she's my stylist.''