Ashton Kutcher and Mila Kunis are Engaged

It's official: Ashton Kutcher and Mila Kunis are engaged!

Kunis was spotted in public today rocking a massive diamond ring on her finger, and a source tells E! Online that she and Kutcher, with whom she co-starred on That '70s Show, are planning on making it official to the public. The couple has been dating for nearly two years now, dating back to April 2012. Their romance, which dates back to their time together on the set of That 70s Show, began just seven months after Kutcher split up with wife Demi Moore.

Congratulations to the happy couple!