Mossy and Vicks, both 39, called a truce at a London Fashion Week party this season, air kissed and even exchanged phone numbers.
"Kate approached Victoria when they were at the same Fashion Week bash, and started chatting amiably," an insider told The Mirror.
"Both women decided to let bygones be bygones, and start afresh. Kate gave Victoria her mobile number and invited her down to stay in her Cotswolds home.
"Since then they have been in sporadic contact, and Kate's been encouraging her to get a place in the country where she and her London-based family can chill at weekends."
If Posh and Becks decide to buy, their neighbours will include PM David Cameron as well as Lily Allen and Liz Hurley who all own property in the Cotswolds.