Hollywood’s Random Couples: Aaron Johnson, 21 & Sam Taylor-Wood, 44 Expecting Second Child (PHOTO)

It’s a table for four as Aaron Johnson and Sam Taylor-Wood confirmed to PEOPLE that they are expecting their second bundle of joy.

The Kick-Ass star, 21, and filmmaker Sam Taylor-Wood, 44, whose unexpected romance made headlines due to their 23-year age difference, are already loving parents to their 1-year-old daugher Wylda Rae.

But what did Johnson have to say about their age difference?

After going public about their relationship last spring, Johnson defended them by telling PEOPLE, ““I’ve got a wonderful woman. I’m an old soul, and she’s a young soul.”

Taylor-Wood and Johnson met in 2009 on the set of her directorial debut, Nowhere Boy.

But this happy couple is not the only two who we think are some pretty unexpected couples in Hollywood. Take a little peek through our gallery and let us know on Facebook and Twitter who you think the most random couple is.