Also posting on social media, Bongiovi, 20, shared an image of him and Brown in colour in the same outfits, which showed Brown wearing a white dress with a lace-style pattern.
He wrote on the post “Forever” with a love heart emoji. A follow-up image showed him looking into her eyes as they wore sunglasses on their heads.
Brown rose to fame as Eleven in the 1980s-set science-fiction series Stranger Things on Netflix and has gone on to play Enola Holmes in the streaming giant’s film of the same name and its sequel.
While playing the teenage sister of the famous fictional Victorian detective, she solves crimes and also stars opposite Henry Cavill as Sherlock Holmes and Sam Claflin as Mycroft Holmes, while their mother is played by Helena Bonham Carter.
Read more on msn.com