Celebrity Couples: The Top 13 of 2013
Mila Kunis and Ashton Kutcher
Though the former That '70s Show costars first stepped out together in the spring of 2012, their romance was hotter than ever in 2013. Engagement rumors followed them all year, as Kunis was spotted with a new gold band on her ring finger, and Kutcher finalized his divorce from ex-wife Demi Moore. At Kunis' brother's wedding in December, the two "seemed very comfortable together," a source told Us Weekly. "They seemed to be having a lot of fun."