• Princess Eugenie honours her sister on her birthday
  • Eugenie shares new pictures with Princess Beatrice
  • These are previously unseen pictures from a trip overseas

Princess Eugenie (31) and Princess Beatrice (33) aren't just British royalty; they're adventurers at heart and sisters by choice. In a recent Instagram post, Eugenie spilled the beans on their covert escapade to Saudi Arabia, marking Beatrice's birthday with a tribute that's both touching and telling.

Also interesting:

Eugenie and Beatrice: Sisters with a cause

Their journey to the desert wasn't just about sisterly bonding; it had a purpose. Beatrice took the stage at a World Economic Forum event, discussing entrepreneurship and social agendas, while Eugenie cheered her on. But it wasn't all work and no play. The sisters made time to visit "Now you see me, now you don't," an art installation by Manal AlDowayan focused on water scarcity issues, where they were seen leaping on trampolines, their joy as boundless as the desert around them.

Eugenie's Instagram tribute and the shared snapshots from their trip offer a glimpse into the sisters' deep connection. "What an inspiration you are. You've paved the way for your little sissy. Love you," Eugenie's message reads, echoing the sentiments she shared on the White Wine Question Time podcast. Their bond, unique to their royal upbringing and shared experiences, has only grown stronger over time, making them not just sisters but best friends.

While Beatrice's role at the forum was previously known, Eugenie's presence highlights the sisters' mutual support. Whether facing the challenges of motherhood, engaging in philanthropy, or simply sharing outfits, Eugenie and Beatrice showcase what it means to stand by each other, no matter what.

More about Princess Eugenie: