Topher Grace thinks Ashton Kutcher and Mila Kunis are an ''amazing'' couple.

The former 'That 70s Show' star is thrilled that his former co-stars, who have 10-month-old daughter Wyatt Isabelle, recently got married even though he was forced to skip their low-key nuptials due to work commitments in Australia.

Asked about the newlyweds, the 37-year-old actor told 'Entertainment Tonight': ''They are both amazing people so the fact that they're together now and have a kid, it's like your two great friends from high school got together after high school.''

Ashton, 37, and Mila, 32, first met on the set of comedy series, which ended in 2006, when the brunette beauty was just 14, but only started dating in April 2012 following his split from ex-wife Demi Moore.

'Jupiter Ascending' star Mila previously admitted the heartthrob was her first kiss.

She said: ''I was so nervous and uncomfortable. I had the biggest crush on him.

''Ashton was so nice. He just made jokes and gave me funny little compliments. He made me laugh.''

The pair celebrated tying the knot with their family and friends at the Secret Garden at Parrish Ranch in Oak Glen, California last month, and are said to have been totally at ease as they prepared to mark the occasion with their nearest and dearest.

A source previously said: ''They seemed very relaxed. You would have never guessed they were actually preparing for [a big celebration].''