Bella Hadid cuts a sexy figure while celebrating sister Gigi's 27th birthday in NYC

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Bella Hadid appeared ready to party as she headed in to festivities celebrating her sister Gigi's 27th birthday in New York.The 25-year-old looked stunning as she arrived at her big sister's birthday bash at Zero Bond, a private club in Manhattan.The supermodel showed off her long legs in gray pleated mini skirt.Lace from her thigh high stockings peaked beneath the hem and the runway regular wore high heeled black boots and a menswear inspired gray and blue vest which skimmed over her taut abs.

Party time:Bella Hadid appeared ready to party as she headed in to festivities celebrating her sister Gigi's 27th birthday in New York at Zero Bond, a private club in Manhattan Birthday kisses: The 25-year-old blew kisses to photographers as she arrived at the invitation only event.

The supermodel showed off her long legs in a pleated mini skirt and high heel boots Plus one: The cover model's longtime boyfriend, Marc Kalman, arrived separately, with her brother, Anwar, and a friendThe cover model's long dark hair was styled straight and pulled back in a zig-zag hair band.

Her longtime boyfriend, Marc Kalman, arrived separately, with her brother, Anwar, and a friend.The in-demand catwalk queen shared a loving birthday tribute to her fellow supermodel on Instagram writing, 'Happy Birthday to my big sister @gigihadidthank you for being born so that I could be born that was very sweet of u.' The look:The supermodel showed off her long legs in gray pleated mini skirt and high heeled black boots, topping them with a menswear inspired gray and blue vest which skimmed over her taut abs'Thank you for being the best sister, mom, daughter, human bean (sic) ever.