Victoria and David Beckham's 17-year-old son creatively placed cutout photos of himself and Moretz in front of a floating hearts background, and simply captioned the Instagram image: "❤️."
On Monday's Watch What Happens Live, the 19-year-old actress opened up about her relationship with Beckham. "I think the more I don't make it mysterious the more people don't care, so yes we're in a relationship," she said.
WATCH: Chloe Grace Moretz and Brooklyn Beckham Can't Stop Instagramming Pics of Each Other!
Moretz also gushed over her boyfriend's famous parents. "He's a great dad (David Beckham), she's a great mother (Victoria Beckham). They genuinely are very good parents that's what matters most,” she told Andy Cohen. “They made a pretty son."
The pair were first rumored to be dating in the summer of 2014, and have since been spotted out together on numerous occasions. In April, Brooklyn shared their first sweet selfie.
WATCH: David and Victoria Beckham Are Not OK With Having a 17-Year-Old Son Who Can Drive
In January, David Beckham revealed to ET the dating rules for his children. "Obviously Brooklyn is definitely at that age," he said. "We're strong parents, and strict parents, but we're like most parents. We love our kids and we want the best for them, so we’ll see."