We've always loved Millie Bobby Brown's style, but something about her vibe in the summer is just *chef's kiss*. The Stranger Things actress promoted her brand new book Nineteen Steps in the freshest white bikini, celebrated her engagement to Jake Bongiovi in the cutest matching set, and now, she's incorporating her swimsuits into her day-to-day slays in a way that's suuuuper easy to recreate.

MBB posted a vibey photo dump on IG that started off with a selfie edited to look like it was taken on a camera from the early aughts, as well as an adorable pic of her and Jake cuddling up together. She even included a FaceTime screenshot with Noah Schnapp where the two actors made two halves of a heart with their hands. But what we're really obsessed with is Millie's outfit on the second-to-last slide, where she styled a blue gingham bikini top as a crop top with a pair of denim bottoms.

The bikini featured ruched cups that gave the swimsuit a mermaid shell look, as well as a cute little gold charm in the center and lace-lined straps.

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Millie cheekily stuck out her tongue while posing for the mirror pic, accessorizing her casual summer lewk with a pair of gold hoops, some casual rings, and sunglasses propped on top of her messy bun.

"Fourth pic is a mood," she captioned the post, referencing a photo of a dog falling asleep while snuggled up on a cream couch.

If you're headed to a pool party this summer, try recreating Millie's 'fit with your favorite bikini and a pair of denim shorts worn on top, and don't forget the sunnies! Keep scrolling to shop some of our favorite dupes below.

Shop MBB's Baby Blue Bikini 🦋
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Hannah Oh
Assistant Shopping Editor

Hannah is the assistant shopping editor at Cosmopolitan, covering all things from cute apartment decor to trendy fashion finds, TikTok products that are actually worth your $$$, and the perfect gift to buy for your boyfriend's mom. She previously wrote for Seventeen and CR Fashion Book. Follow her on Instagram for hot takes on red carpet fashion and unhinged updates on the books she’s reading on the train.