The Only Way Is Essex stars have explained that they think their clothes would flatter the royal bride.
The sisters told Metro: "We would love to dress Kate Middleton. She always looks lovely, but she's always very smartly dressed. We'd love to see her in one of our dresses."
Sam said that she and Billy decided to start a fashion business because they 'have always loved getting dressed up'.
Sam also admitted that the pair wear their own ensembles during the ITV2 show.
She added: "Fans of the show were always asking me what I was wearing and where they could get it. Now they know."
Faiers recently appeared without makeup for a Heat magazine photoshoot alongside The Only Way Is Essex love-rival Lauren Goodger.