“There were very little if any relationship-defining poses of the pair over the years, although recently there have been clues that suggest they might have been becoming closer,” Judi commented.
“Senior royals do seem to have closed ranks around the Queen recently, creating an elite squad of Charles, Camilla and Anne, Kate and William and Edward and Sophie.
“Given their past histories, with Anne having dated Camilla’s ex husband, the relationship between Anne and Camilla might have been difficult, creating a bigger rift between Charles and his sister.
“But in fact the two women seem very tolerant of one another to the point of often looking like old friends, and this might have created an easing in the relationship between the siblings.”
source: express.co.uk