Millie Bobby Brown In Plunging Glitter Underwear Is 'Not A Child Anymore'

Millie Bobby Brown went all "oh boy" in her caption recently, posting selfies on Instagram while showing off her stunning figure. The British actress, 21, stripped down to a pink, plunging bra while going glittery earlier this week, and fans were digging it. While some complimented Millie on her blush as she matched her cosmetics to her sparkly lingerie, others noted that she's not the child star she once was. Millie, who made May 2024 headlines for marrying husband Jake Bongiovi, was reminded that she's all grown up now, although these comments may have been for other fans — Millie's followers often seem to struggle with understanding that she isn't 14 anymore.

Scroll for the photos. Gazing into her phone as she snapped a selfie, Millie pouted a little while drawing the eye to her curves.

Flashing her cleavage while modeling a girly, lacy bra in pale pink, the Florence by Mills founder added sparkly accents to her lingerie, rocking a push-up finish and even teasing hints of underboob. Millie wore a flattering pink bow between the bust, adding underwire for support while rocking a sleeveless, low-cut dress in pink over her bra.

Displaying her toned arms and shoulders, Millie showed off a pink manicure to match her outfit, also flashing her massive diamond ring. The Hollywood star, who has made 2025 headlines for her blonde era, had reverted to her usual darker hair, which she wore tied back. Millie kept glam with matte makeup, wearing plenty of pink blush to match her rosy lip stain. In a swipe right, she offered a close-up, this time highlighting her expensive-looking diamond earrings.

"This is the most beautiful girl in the world," one fan replied. "Not a child anymore. Got it!" another said. Also mentioning Millie's age, a further fan wrote: "Lord she’s 21 now smh I’m getting old."

Millie is busy running her OG cosmetics line and Florence by Mills Coffee brand, but she's got a third gig going. In 2024, she launched Florence by Mills Fashion, promoted in the above boat snap. Throwing back her head while smiling earlier this month, Millie stunned in terry shorts to match a cute crop top, writing: "It's about to be a terry summer" while tagging her trendy clothing label.

This pink look showed even more skin as Millie Bobby Brown rocked undies-style shorts and a plunging pink bralette on Instagram. While one fan bluntly told the star to wear a "normal" shirt, others defended her. "I don't understand how people can hate on you and hate on your body figure but you're clearly beautiful like they obviously don't have eyes, maybe they need glasses" was a popular reply.