Millie Bobby Brown wears an orange bikini while on an Italian getaway with BF Jake Bongiovi

Millie Bobby Brown looked stunning in bright orange string bikinis while on vacation with her boyfriend in Italy.

Millie Bobby Brown loves to wear a stylish outfit, and this is exactly what she did on vacation in an orange string bikini.

While on vacation in Sardinia with Jake Bongiovi, the 18-year old wore a string bikini as she lounged on the beach.

Millie paired her orange look with black and white sunglasses, and a halter mini-dress coverup in orange that featured the word "summer" written on it.

Millie wore her blonde hair in a messy bun with gold earrings.

Jake continued to wear the blue button-down, short-sleeve shirt that he wore all of vacation. The top was paired with short black Nike shorts and black sunglasses.

Millie has been wearing a variety of bikinis on vacation with Jake.

She wore a pair of blue star-patterned Louis Vuitton triangle shirts with a neon green crochet sarong.

She wore matching, cheeky bathing suits bottoms under the sarong.