Mariah Carey and Nick Cannon will “definitely have kids”.

Nick’s half-brother Reuben Cannon revealed the newlyweds have a “real and honest love” and want to start a family.

He said: “Nick definitely wants kids with Mariah. But I am not sure exactly if now is the time - both of their careers are crazy right now.

“They have a real and honest love. That is what is going to keep them together. He loves her more than any other girl.”

Reuben – who is working on his new solo album – also revealed Nick, 27, was a huge fan of 38-year-old Mariah’s music when he was growing up.

Mariah and Nick made their second public appearance as a married couple at Ellen DeGeneres’ 50th birthday party in California over the weekend.

Other guests at the event – which had a carnival theme, complete with a carousel and stilt-walkers – included lovers Paris Hilton and Benji Madden, Courtney Cox Arquette and her husband David Arquette and Tom Hanks and wife Rita Wilson.

Mariah Carey and husband Nick Cannon leaving Gyu-Kaku restaurant in Beverly Hills, California (05/12/08).