Millie Bobby Brown and boyfriend Jake Bongiovi canoodle on a boat

Millie Bobby Brown is out of the Upside Down and on cloud nine with Jake Bongiovi.

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The “Stranger Things” star and her boyfriend adorably packed on the PDA

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While enjoying a day out on a boat in Sardinia, Italy, on Thursday.

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The couple looked loved up while relaxing on the Mediterranean sea, with Bongiovi, 20, leaning in to kiss the actress.

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Brown, 18, stunned in a black-and-white gingham bikini, which she paired with a casual baseball cap

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The outing comes nearly two months after the young couple turned heads on the red carpet for the Season 4 premiere of “Stranger Things.”

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