And the results are terrifying.
Some face swaps can never be unseen.
Kourtney Kardashian recently took to Snapchat to share the face swaps she did of her and her ex, Scott Disick, with two of their children, 6-year-old Mason and 3-year-old Penelope. Not surprisingly, the pics turned out pretty weird.
WATCH: Penelope Disick Out-Slays Grandma Kris Jenner in Matching Lemon Dresses
Check out Mason with 33-year-old Scott's face, facial hair and all.
Kourtney, 37, also swapped her face with Penelope's, and the results aren't any less frightening.
This isn't the first time the Kardashian family has produced terrifying face swaps. In March, Khloe Kardashian shared her "busted" face swaps with both her brother, Rob Kardashian, and her mother, Kris Jenner.
Though she did have some kind words to say about Kris' youthful look!
"I never realized how much my mom and I really look alike," the 31-year-old reality star mused about the pics, which she posted on her app. "I would be SO happy if I looked like this at 60!!!"
Watch the video below to see what happens when Kourtney face swaps with Scott!