Jennifer Aniston is taking style tips from Justin Theroux about her wedding dress.

The 'Friends' star allegedly took her fiance - who popped the question in August - to meet with Italian fashion house Valentino's creative directors to brainstorm ideas about her dream wedding gown, and wants the actor to be heavily involved in the design process.

A source told heat magazine: ''Jen always consults Justin on her wardrobe, whether it's casual or if she's trying to pick a red-carpet dress. She really values Justin's opinion and says he's often the only one to be brutally honest.

''They met with Valentino's creative directors Maria Grazia Chiuri and Pier Paolo Piccioli to discuss wedding dress designs and Justin had a big input. They showed Jen a variety of fabrics and Justin helped them recreate what he knew was in Jen's head.''

Despite the 43-year-old actress being warned that showing her future groom her wedding dress is bad luck, the star is said to have shrugged off the superstition, saying her first marriage to Brad Pitt ended regardless.

The insider continued: ''Her pals told her she was 'crazy' and said it what bad luck it would be, but Jen's never been superstitious, and said Brad never saw her first wedding dress, but they still divorced.''

Justin is clearly enjoying his creative freedom, as the source added: ''He's joked that it may be a little more revealing than she'd hoped.''