Analysing pictures for Express.co.uk, body language expert Judi James commented on their relationship.
While the royals joined the family more than 10 years apart, they have seemingly formed a close bond.
Judi explained: “Sophie and Kate communicate in a very engaged and friendly way.
“[In one photo] Sophie actually leans across to speak to Kate and her eye expressions form a powerful tie-sign that suggests keen engagement and a very close relationship.”
Kate and Sophie have both stepped up since marrying into the Royal Family.
The Duchess of Cambridge has enjoyed a growing role while Sophie is thought to be one of the closest to the Queen.
Before the coronavirus pandemic, the royals were spotted next to each other at the 2016 Remembrance Service at the Cenotaph.
They stood together with Prince Charles’ wife, Camilla, Duchess of Cornwall.
“Especially in the face of…