Actress Mila Kunis is reportedly expecting her first child with her new fiance Ashton Kutcher. Just weeks after the Black Swan beauty allegedly became engaged to her longtime beau, a source tells E! News that they are now preparing to become first-time parents. Kunis is said to have been spotted attending a prenatal yoga class in Hollywood recently, and despite speculation suggesting she is having twins, the insider reveals the actress is only expecting one child with Kutcher. The lovebirds showed a rare public display of affection on Saturday (22Mar14), when they became the centre of attention at a Los Angeles Clippers basketball game. The Staples Center's famous Kiss Cam focused in on the stars while they were sitting courtside and Kutcher happily obliged as he turned his baseball cap around for better access to plant a smooch on Kunis. The famously-private couple has yet to comment on the engagement rumours, which emerged after Kunis was spotted wearing a sparkling diamond on her left ring finger while out shopping in Los Angeles last month (Feb14). The pair began dating in 2012, months after Kutcher's 2011 separation from ex-wife Demi Moore after six years of marriage. Kutcher and Moore's divorce was finalised last November (13).