Congrats to insanely attractive couple Mila Kunis and Ashton Kutcher. The former 'That '70s Show' co-stars are reportedly engaged after two years of coupledom.

Kunis was snapped wearing quite a diamond on her left wedding ring finger while shopping in Los Angeles with her mother. That doesn't look like any old ring, either. That looks like a betrothal rock.

A source confirmed that the pair is indeed engaged to E!.

Prior to getting together, Kunis, 30, dated 'Home Alone' star Macaulay Culkin for nearly a decade before splitting amicably in January 2011, while Kutcher, 36, was married to Demi Moore, who was several years his senior. They were happily married for many years before splitting at the end of 2011 amid allegations of Kutcher's infidelity.

Kunis, a new Jim Beam spokesperson, and Kutcher are an unfairly good-looking and talented couple. Their friends have said that an engagement seemed like the next logical step and here it is. That ring is no joke! It certainly doesn't look like a friendship ring and it's worn on "that" finger, so...

...Congrats Mila and Ashton!