Pregnant Princess Beatrice dazzles in black dress at A-list dinner

, who is expecting her second child with husband , showed no signs of slowing down as she mingled with a host of celebrities on Tuesday evening.

The 36 year old royal, was all smiles as she attended two back-to-back events in central London, rubbing shoulders with the likes of Nicky Hilton and Lady Kitty Spencer.

The first event was the launch of a new capsule clothing collection by Nicky, in collaboration with Australian designer Rebecca Vallance, at Mayfair hotspot Gaia.

For the occasion, Beatrice showcased her own fashion sense in a stunning black dress with statement bow details, which elegantly skimmed her baby bump.

The collection, consisting of 31 pieces including evening gowns, party dresses and jumpers, is perfect for the festive season, according to the Daily Mail - and may have given Beatrice some inspiration for her Christmas wardrobe.

Following the conclusion of the event, there was no downtime for Princess Beatrice as she dashed to her next engagement-a dinner at The Orangery, hosted by Estee Lauder and Harrods.

She was accompanied by none other than , Lady Kitty Spencer and twins and Lady Eliza Spencer, turning the evening into an impromptu family gathering!

The Orangery is also noted for its location near Kensington Palace, once the residence of , his wife , and their children , and reports

Meanwhile, not to be overshadowed, was also out and about on October 22 with her husband Jack Brooksbank, attending a series of events in Mayfair, a short distance from where Beatrice was.

The sisters are renowned for their tight-knit relationship, recently finding more common ground through their experiences of motherhood.

Beatrice is a doting mother to her daughter Sienna, aged 3, and stepson Wolfie, aged 8, while Eugenie has two sons, August, aged 3, and Ernest, aged 1. Discussing their mutual support during challenging times, Eugenie shared with : "I ring her a lot about meltdowns and what do we do and this and that."

Referring to a social media post she made in response to her sister's pregnancy announcement, Eugenie said: "When I was Instagramming that photo, I rang her, and I was like, 'What do you want me to say? ' Because I always want to ask, just in case. And she said, 'Can't wait to talk about the trials and tribulations of motherhood.' "

"I posted about our mothering journey, because it really is like you become part of a club - a mothering club. And when your children are the same age and they're going through the same things, it's just the luckiest thing in the world," Eugenie continued. "And Bea's my big sister. I talk to her about everything."