Gigi Hadid protective of younger sister Bella Hadid

LONDON, Dec. 10 (UPI) -- Gigi Hadid is very protective of younger sister Bella Hadid.

The 20-year-old American model discussed her 19-year-old sibling in a video feature for British Vogue. Hadid told the magazine she keeps an eye out for her sister, who is following her and mom Yolanda Foster into modeling.

"It's like the end of your life pretty much," she said of when Bella Hadid is in trouble. "Backstage at a show in Paris, for some reason they let photographers take pictures while girls were changing, which just [expletive] me off."

"My sister's changing next to me and I was like, 'If you don't put that camera away and stop shooting my sister, I'm going to come over there, I'm going to take that camera, and throw it on the floor," she recalled.

Bella Hadid made her Chanel runway debut this month, telling fans it was a dream come true to walk for the haute couture house. Hadid has also modeled for the brand, and walked in her first Victoria's Secret Fashion Show in November. The siblings recently collaborated on a sisters-themed Balmain campaign with Kendall and Kylie Jenner.

Hadid and Bella Hadid are daughters to The Real Housewives of Beverly Hills star Yolanda Foster. The 51-year-old television personality declared she will "walk to the ends of the earth" to help Bella and son Anwar, who are also diagnosed with chronic lyme disease, on Instagram this week.