Stop the press—Jennifer Aniston has picked out her wedding dress.

The 44-year-old actress is getting ready to step down the aisle for the second time with boyfriend Justin Theroux and has reportedly been working very closely with Valentino designing the perfect dress for her perfect day.

"Jen and Justin want to make it a really special day and they're very excited," an insider told Grazia magazine.

Also adding that: "Jennifer has been working with Valentino on a dress and has been heavily involved in the designing process, while Justin intends to wear an Armani tuxedo."

Aniston was one of the red carpet style winners at the Oscars in her red backless Valentino gown, as the Italian fashion designer's look perfected Jennifer's big day in the spotlight. The dress she wore to the Oscars was also apparently a "thank you" to the 80-year-old for designing her wedding dress.

Not a bad way to say thanks, eh?

Rumors suggest that Theroux and Aniston will make their love official in the next few weeks in a private ceremony in Hawaii. The event will be a low-key affair, much in contrast to Jen's first marriage to Brad Pitt in 2000.

"Jen would have liked to have done it at home in Los Angeles but it looks like that would be too difficult to keep quiet. She doesn't want to get married with photographers buzzing around her head in helicopters," a source told the Mail Online.

Adding: "Justin just adores Hawaii. It's his favourite place in the world and he has a little house on the island of Kauai.

"His cottage is too small to host the wedding and Jen thinks it has too many memories of his old flames anyway. But they both love the island and the idea of a laid back Hawaii wedding in the sunshine."