Sitting side-by-side, Eugenie and Michelle appeared deep in concentration as they watched the basketball game with one another.
Their friendship was first put on display at Madison Square Garden in December 2013, when the duo watched where she watched the Atlanta Hawks take on the New York Knicks (pictured).
Three years later, the actress posted a sweet photograph on her Instagram account of her enjoying a tour of the Hauser & Wirth art gallery in downtown LA with the royal (pictured).
The Gossip Girl star was a friend of Princess Eugenie's after the pair bonded while Queen Elizbeth II's granddaughter, 34, was living and working in New York in 2013.
With her arm around Eugenie, the Buffy the Vampire Slayer star shared her affectionate nickname for the Duchess of York 's daughter, labelling her 'my girl E'.
