NY Magazine has sparked speculation that People Magazine photoshopped their $14 million cover shot with Brad Pitt and Angelina Jolie’s three-week-old twins, Knox and Vivienne, after discovering that newborns under the age of three-months “do not smile from exterior stimulation.”

NY writes:

In that cover photo, it looks like Vivienne Marcheline — clearly the Ashley half of this Olsen-like combo — is sporting a giant grin. She may even be laughing. Hold on. These babies are purported to be a mere 3 weeks old!

The style mag did some P.I work and after digging around Parenting Magazine discovered that “babies don’t smile from exterior stimulation until two to four months – even if said exterior stimulation is the most beautiful pair of humans in the entire world.”

(Maybe it was gas?)