The teenage sweethearts, who recently confirmed their budding romance, gazed adoringly at each other in a snap shared by the Kick Ass actress to Instagram.
The captionless pic shows Brooklyn leaning towards Chloe as she holds her phone to a mirror.
"Lovely couple," one fan wrote alongside the snap.
During an appearance on The Late Late Show, 19-year-old Chloe admitted she "likes" it when her four older siblings try to intimidate guys, but they get on so well with her boyfriend she even finds them texting one another in secret.
She told James Corden: "They're super protective, but I kind of like it.
"They like him so they're nice to him now. Now that I have a boyfriend, they correspond [with each other] secretively.
"We were all at dinner the other night and I caught my boyfriend texting my brother. ... Maybe it's like, they're intimidating each other on text message."
She said: "At the start it was like, 'What's he want? What's he looking for?'
"I'm like, 'Guys, I'm the older woman. It's OK here. I'm in control.' "
Chloe recently admitted she gets on well with Brooklyn's famous parents, David and Victoria Beckham.
She said: "He's a great dad, she's a great mother. They genuinely are very good parents that's what matters most, they made a pretty son."
