Mila Kunis and Ashton Kutcher
Mila Kunis and Ashton Kutcher are expecting their second child together Reuters

American actor Ashton Kutcher seems to have accidentally revealed that he and Mila Kunis are expecting a baby boy. The celebrity couple is already parents to daughter Wyatt Isabelle Kutcher.

During an appearence on the Today Show, Ashton revealed the unborn child's sex while detailing how Wyatt reacted to the baby news. He said: "She points to Mila and she's like, 'baby brother' when she points to the belly and then she points to dad and she goes, 'Beer,' so I think she gets there's something in the belly but I don't quite think that she knows that it's not going to be a plastic doll yet."

Meanwhile, Kunis had previously opened up about her pregnancy. The Black Swan actress told Entertainment Tonight: "I forgot how far along I was today. I think with the first one, you're so enamoured with the initial experience that I was constantly checking the app, 'What fruit size is the baby? Is it the size of a grape or an avocado?' Now I'm like, 'Wait, how far along am I?' You're busy running after the other one and working full time."

Kunis also shared their parenting goof-ups. She said: "Sometimes babies projectile poop, and it was one of those days where there was a lot of poop. I turn around and he's like, 'I got it babe!' and I was like, 'Great!' And then I turned back around, and he literally bathed her in the sink, which is fine, and then wrapped her in an entire roll of paper (towels)."

"I was like, 'What are you doing?' and he's like, 'Drying her up!' and he goes, 'I couldn't find the towel.' And I literally was like, 'What is happening!?' She was cocooned in this little Bounty (paper towel brand) roll, and I was like, 'Oh my god I love you so much!' It made me so happy. I took so many photos of it. I literally was dying laughing," Kunis said.