Bella Hadid rocks 'Auntie B' necklace as she shows off her abs after celebrating niece Khai's first birthday with sister Gigi, Zayn Malik, and family By Kelby Vera For Dailymail.com Published: 20:00 BST, 20 September 2021 | Updated: 20:01 BST, 20 September 2021 Viewcomments She's no stranger to the gym. And Bella Hadid was happy to flaunt the fruits of her fitness regime while heading home from her daily exercise session in NYC on Monday. The IMG stunner, 24, looked red hot as she revealed her taut abs and toned legs rocking a scarlet sports bra and little black shorts repping her favorite spot, Gotham Gym. Red hot: Bella Hadid sizzled in a sporty red and black exercise set on Monday in NYC Her athletic attire left little to the imagination, putting her head-to-toe muscles on full display. She had her brunette tresses smoothed back sleekly and twisted into a braid, keeping her look practical for exercise. Continuing the sporty-chic look, Bella added a pair of rectangular sunglasses along with red and black sneakers which matched her set. But her most special accessory was a beaded necklace which said 'Auntie B' on it. Sweet: The model donned a beaded necklace which said 'Auntie B' on it, a nod towards niece Khai Toned: Her athletic attire left little to the imagination, putting her head-to-toe muscles on full display The piece was a nod to niece Khai, who celebrated her first birthday over the weekend with mom Gigi Hadid, 26, and dad Zayn Malik. Anwar Hadid, his girlfriend Duo Lipa, happy grandma Yolanda and her ex-husband Mohamed Hadid were also there for the fun. Bella couldn't hide her delight at becoming an aunt after her sister revealed her happy baby news last year. 'I’m going to be a freaking auntie!!! I will cherish this little bean forever,' she wrote on Instagram. Auntie B! The piece was a nod to niece Khai, who celebrated her first birthday over the weekend with mom Gigi Hadid, 26, and dad Zayn Malik Former One Direction crooner Zayn began dating Gigi in 2015. Though they tend to keep their relationship private, their chemistry was clear when she appeared in his 2017 Pillowtalk music video. Things weren't all smooth sailing for the couple, however. They split in March 2018 but were spotted kissing one-another just weeks later but continued to court breakup rumors on and off until April 2020, when they announced they were expecting a child together. Mommy: Gigi, 26, welcomed daughter Khai one year ago Share or comment on this article: All rights reserved for this news site (dailymail) and under his responsibility