The 21-year-old model discussed her love of photography on Tuesday's episode of the NBC late-night talk show before snapping pictures of Fallon in a Vogue-inspired pose.
"I've been shooting with Love magazine a lot," Jenner said of her recent covers featuring Sienna Miller and Kaia Gerber.
"I used to just shoot my friends. I love, like, capturing a moment or being very candid and just, like, capturing all my friends and hanging out."
"I think it's a lot more authentic to capture a photo just on film and I have a whole folder on my phone of just, like, the sickest photos," she added.
Fallon struck a pose on his desk before recreating a shot in the March issue of Vogue of Jenner standing on a horse.
Gerber, the 15-year-old daughter of supermodel Cindy Crawford, had said last year in Love that working with Jenner was "effortless."
"It just felt like two friends hanging out, snapping a few photos at candid moments," she said. "Kendall told me that my mom is one of the people she looks up to most, and it's cool to see it come full circle because Kendall is that role model for me."
FOLLOW REALITY TV WORLD ON THE ALL-NEW GOOGLE NEWS!
Reality TV World is now available on the all-new Google News app and website. Click here to visit our Google News page, and then click FOLLOW to add us as a news source!
Copyright 2017 United Press International, Inc. (UPI). Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.