Blake Lively "Forgot Her Pants" With This Outfit — but There's Only 1 Person Who Called Her Out

We're suckers for a throwback fashion moment, and Blake Lively just gave us the best belated Valentine's Day treat in the form of a ribbed sweater dress and Valentino moto boot combo that instantly transported us back to the Gossip Girl days. It's been several years since we last saw our favorite New York City teens — and their super-high-end wardrobes — but Blake's Serena van der Woodsen-inspired outfit gave us a warm and fuzzy feeling. Can you blame us?

On the other hand, Blake admitted that her daughter's reaction was quite different. "True story: As the elevator closed my daughter yelled after me, 'Oh no mama, you forgot your pants!'" she wrote on Instagram, captioning a shot of of this very ensemble.

Even still, Blake pulled off the risky combination that sparked major nostalgia as far as we're concerned. Serena's look was always eclectic; a little bit boho, a little bit edgy, with a hint of preppy and a whole lot of designer. These days, in real life, the mama's style runs the gamut as well and is just as good. So, in honor of our Upper East Side style icon, we're celebrating this look in all its retro glory and giving you a few ways to score it for yourself.