The `Dreamlover` singer - who welcomed twins Monroe and Moroccan into the world on April 30 - and her husband Nick Cannon have been disagreeing about whether or not to expand their family further, but the 41-year-old star is adamant two kids is enough. Asked if he wanted to have more children, Nick told In Touch magazine: "I do, Mariah doesn`t! She was like, `That`s it, I`m done! Two at once!` "It was an intense pregnancy to carry twins around. She was a trooper. She`s feeling amazing now. She`s back on her feet doing her thing." Despite the showbiz background of both their parents, TV presenter Nick is insistent they should try a different career path when they grow up. He added: "There are so many other aspiring things to be in life. I always think we put too much emphasis on the entertainment world. I would love it if my children were doctors." `America`s Got Talent` front-man Nick finds fatherhood easy because he doesn`t need to sleep. He joked: "I never slept before! I`m kind of cut out for fatherhood because I never sleep. So now, instead of doing other stuff, I`m with my kids. Other than that, definitely more sensitive to my moves because I`m responsible for people now."