Middleton, 29, called up Victoria to say she loved her outfits after Victoria sent her a selection of her spring-summer collection. The bride-to-be also asked Victoria for general advice on evening wear during the romantic break after her April 29 wedding, reports thesun.co.uk.
"Victoria is thrilled Kate loved her dresses and was only too happy to give her fashion tips. The ladies get on very well and Vic can't believe she is helping to dress the future Queen," said a source.
Victoria, who is expecting her fourth child with ace footballer David Beckham, had earlier spoken about how she admires Middleton's dressing sense.
"She is a beautiful young girl, she has a wonderful figure and I think she wears clothes beautifully. I would be honoured if she were to wear my designs," she had said.