Nicky Hilton partied until late into the night in a sparkling minidress as she swapped her stunning white lace Valentino gown for a more playful look. Heiress and younger sister of Paris Hilton married fiancé James Rothschild at Kensington Palace in London Friday. The 31-year-old “365 Style” author said “I do” to her banking heir beau at the Orangery in Kensington Palace.

Sister Paris served as maid of honor, donning a baby-blue strapless gown and glittery heels for the occasion, People reported. Hilton changed out of her long-sleeve, ivory and silver Valentino Haute Couture gown. She went in for a sparkly, short number for the evening festivities that included a reception and party. 

The newlywed was photographed while returning to Claridge’s Hotel late night. The dress featured sheer cutouts and silver sequins. She paired the ensemble with beaded pumps and a small white purse. 

While her heels were from Christian Louboutin, her white bag was by Dior. Hilton wore her long blonde hair in loose curls. Peach blush, black mascara and a hint of rose lipgloss completed her party look. Meanwhile, her English banker husband was still in his wedding tuxedo.

Rothschild’s black bow tie was loose around his neck and his shirt unbuttoned as he re-entered the hotel. The lavish wedding had an impressive guest list that included Chelsea Clinton, whose husband Marc Mezvinsky is friends with the groom. “Real Housewives of Beverly Hills” star Kyle Richards (Hilton’s aunt), Kate Beckinsale andRich Kids of Beverly Hills” actress Dorothy Wang also attended.

The bride’s cousin, Whitney Davis, played a part in the ceremony, singing during the service. Earlier in the day, Nicky had a little wardrobe malfunction when she was escorted out of the hotel by her father, tripping over her lengthy train. The American hotel heiress reportedly drew some wedding dress inspiration from Kate Middleton for her big day.

The stunning Valentino Haute Couture gown featured a high-neckline, long sleeves and a flowing train. It was designed by the label’s creative directors, Maria Grazia Chiuri and Pierpaolo Piccioli.