Motherhood looks really good on Amal Clooney!

Just over a month after giving birth to twins, the 39-year-old lawyer joined her husband, George Clooney, for a double date with producer Ben Weiss and his wife at Villa d'Este Cernobbio in Lake Como, Italy, on Tuesday night, arriving at 9:15 p.m. and leaving at 11 p.m. Amal looked absolutely stunning in a short yellow sundress and nude wedge heels, while George wore a short-sleeved white button-down shirt, dark pants and brown shoes.The two were all smiles as they held hands and greeted the wait staff.

EXCLUSIVE: Rande Gerber on the Clooney Twins -- They're the 'Perfect Mix of George and Amal'

"As they were leaving, George shook hands with the maître of the restaurant," an eyewitness tells ET. "George was smiling and looked relaxed. From time to time at dinner, Amal would check her phone and show it to George."

This is one of the first times fans of the couple have seen Amal all dolled up since she and George welcomed their babies, son Alexander and daughter Ella, on June 6. Needless to say, the Clooneys are thrilled to have the new additions to their brood.

ET spoke with George's father, Nick Clooney, who revealed to ET how fatherhood has changed his 56-year-old son. "Since the word came out that he was going to be a father, no question about it, he changed," Nick said. "This has nothing to do with age, but this is a different kind of maturity. When you figure out that you're going to take that standard responsibility that everybody else has done for years, and now you're on the merry-go-round. You're in the middle."

MORE: George and Amal Clooney’s Twins' Birth Order Revealed - Find Out Who Is the Oldest!

Here's more on the new parents:

^{Additional reporting by Kayley Stumpe.}

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