Double the celebration: Monaco twins turn two!

On December 10, Prince Albert and Princess Charlene’s gorgeous twins will celebrate their second birthday.

Prince Albert, Princess Charlene, Prince Jacques and Princess Gabriella

On December 10, Prince Albert and Princess Charlene’s precious cherubs celebrated their second birthday.

Princess Gabriella and Prince Jacques have grown into an adorable brother-sister duo.

Speaking recently of his children, Prince Albert told People his little ones were thriving!

"The kids are great. They’re running around everywhere, still jumping in and out of the pool up at the ranch [Roc Agel] on a day like today when it’s still warm enough here," he explained to the publication.

“They’re still all smiling and laughing. I still haven’t seen any tantrums, though those are probably coming, but for now, they’re very sweet and alert."

Although Princess Gabriella was born first, her younger brother will inherit the throne. They also have two other half-siblings who they'll be getting to know.

Half-sister Jazmin Grace Grimaldi, whose mother Tamara Rotolo had a three-week fling with the Prince during a holiday to the French Riviera in 1991, says she can't wait to get to know her younger brother and sister.

“I can't wait to be a sister to them and watch them grow up,” she told Harper’s Bazaar last year. Albert also has a 13-year-old son called Alexandre Coste with Nicole Cost, however due to the fact the they were both born out of wedlock, they’ll never be an heir to the Monaco throne, or have any royal title.

Speaking about her children, South African beauty Charlene told Paris Match they were well and truly growing into their own little people.

"Jacques is a real boss. He's grown a lot and seems to have taken after his father. He only needs a little sleep, and he's looking around all the time,” Charlene, who married Albert in 2011, revealed of her son.

"He's very observant and has developed a real protective side, which he directs towards his sister Gabriella. They interact in their own little world. It's amazing to watch them.”

As for her darling daughter, "We've noticed, funnily enough, that she's developing a real princess attitude. I can tell you that her favourite colour is pink and that 'no' is a word she doesn't like."

Click through the gallery to check out the twins' amazing first two years!

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