It's called the "baby giraffe pose," says fashion influencer Eva Chen.
She's the master and perhaps the first to name this pose, which she herself has been religiously doing especially in her staircase OOTDs.
Via IG stories, the fashion influencer and director of fashion partnerships at Instagram shared a screenshot of her conversation with Prabal Gurung, Tina Craig, and Bryanboy, in which she's explaining how she's able to have insanely long legs in her photos—no heels required!
Eva says she achieves this simply by standing like how a baby giraffe would: Stick your bum out, tilt one leg forward, and keep the other one at the back. Plus points if you remember to point your toes!
Genius, right? Now go forth and practice your own baby giraffe pose!