Mum Victoria adores the 15-year-old Brit actress, made famous by the smash hit Netflix series, and approves of the burgeoning romance with her 16-year-old son.
Play VideoDavid Beckham reveals he makes sons Cruz and Romeo RUN three miles to school every day
Millie, 15, first got introduced to Romeo’s family in December 2016 when she handed out an award with him at charity Unicef’s 70th anniversary gala.
At the charity do, the pair hugged on stage and afterwards Millie shared a picture of them posing together online and said she would “remember this evening for the rest of her life.”
And on the red carpet she made it clear she had eyes for the wannabe tennis pro.
When asked what her hopes were for her Stranger Things character Eleven, said: “I don’t know. Something with Romeo Beckham.”
A source said: “It’s early days but they make a very sweet couple. Posh has given it the seal of approval as she is a big fan of Millie’s.”
The actress, who found stardom on Stranger Things, was dating American singer Jacob Sartorius, 15, until July 2018.
She shared an emotional letter about their break up online and was praised for being so honest.
Romeo has never publicly dated anyone previously.
Millie, who boasts the likes of Mark Wright and actor Zac Efron as pals, is one of the top earning young actresses in Hollywood commanding £220,000 per episode of the supernatural series.
She is also pals with Romeo’s older brother Brooklyn’s girlfriend Hana Cross.
A source close to the Beckhams last night said: “Romeo and Millie are hanging out.”