The duo are hoping to go into business together by creating a quirky and contemporary clothing collection for Topshop mogul Philip Green, thanks to their connection with his daughter Chloe Green, reported Sun online.
"Rita and Cara have been talking about the idea for weeks now. Cara has great fashion industry contacts and Rita loves her clothes and keeps up with trends," a source said.
"They think a line could compete with those released by Victoria Beckham and Kate Moss. Rita's become increasingly matey with Chloe Green and has mentioned the idea to her in the hope that she might help get it to her dad, Topshop boss Philip," it added.