With a slew of multimillion dollar fashion and beauty campaigns between them, roles as the faces of Dior Beauty, Fendi, Stuart Weitzman, and starring roles on the Tommy Hilfiger, Versace and Balmain catwalks, you'd be forgiven for thinking Bella and Gigi Hadid might be in competition as to who can nab the most fashion gigs.
But according to 20-year-old model Bella, battling it out with her older sister for magazine covers and coveted spots on the runway is hardly a priority.
'Most of the time our markets are completely different,' the star told Harper's Bazaar Arabia.
'And if we get booked on a job and she gets it or I get it, we're both happy for each other,' she added.
Having walked alongside her sister on numerous occasions over the years on the runway, and most recently with their younger brother, Anwar, at Hilfiger's show during London Fashion Week, the Californian beauty said: 'There are enough jobs in the world for both of us.
'There's no reason for us to be mad at each other or competitive. So if she gets it, then good for her.'
But what if Gigi nabbed a modelling deal Bella desperately wanted?
There are enough jobs in the world for both of us
'We're in the family so she can buy me a pair of shoes,' she joked.
When asked how she feels when people suggest modelling is an easy career, the face of Bulgari noted: 'Everybody has a different opinion of what hard work is. At the end of the day, if you're exhausted, you worked hard. I'm definitely tired most of the time.'
And it's hardly surprising the model is tired given her daily battle with Lyme disease, which causes symptoms of intermittent fatigue and fatigue after exertion.
Everybody has a different opinion of what hard work is
As a result of the chronic illness, the brunette bombshell was forced to retire from her beloved horse riding, amid hopes of becoming an Olympic equestrian.
'It's not very giving, being a model, it doesn't warm your heart,' she explained. 'It's not as rewarding for the soul as most things.'
Bella credits her strong will and personality for helping her cope with the demands of her career.
'Since I was a kid I've loved helping people. My mum always said that I would go on the street and hug somebody that was sitting on the corner.
'It was just because I genuinely loved people, and that's something that I want to bring forward with me in my career. If I'm able to change something in the world for the better, then I'll be ecstatic.'
Discussing her struggles with online bullying, the model admits she leans on her family for support.
'It's really tough. You're going to get scrutinised for anything that you do. So if you're skinny and have a sick body and you don't have a butt, people are going to say, "Why do you have no butt?"'
'And then you go and get a fake butt and they get mad at you because you have a fake butt. And then you don't have boobs, and it's just a whole circulating circle.
'The hardest part is being judged, and that's what they talk to me about. It's really sad because it doesn't happen just in America or just in Europe, it happens everywhere in the world. Bullying is a crazy thing
'I have a whole angel family. I think that there's a lot of beautiful spiritual beings in the world. They're just floating, and they're around if you feel a need for them. I draw strength from that completely. It's definitely how I've gotten through the past year and stayed sane.'
Just keep doing you, Bella.