Mary-Kate Olsen and Olivier Sarkozy may have only been engaged for a short time, but the couple isn’t wasting any time expanding their family.

The 27-year-old actress and 44-year-old French financier are ready to take their relationship to the next level by having a child together, according to a new report from Us Weekly. Olivier, who has two children, Julien, 12, and Margo, 10, from a previous marriage, is excited to become a third-time father with Mary-Kate, especially since she’s proven her maternal instincts with his two older children.

"Mary-Kate has made him a better father. She remembers all the kids' special events," says a source to Us. "She thinks he's a great dad."

While it may seem like a fairytale romance for the May-December pair, the outlook wasn’t always quite as sunny.

A source close to the couple reveals that Olivier has been trying to get Mary-Kate to tie the knot with him for some time now, although his first attempts at a proposal were unsuccessful.

“He tried about a year ago, and she wasn't ready," says the insider. "She didn't need to be wined and dined. She wanted to make sure he would be good to her."

Source: Us Weekly