Meanwhile, Brooklyn's dad, David, also joined the virtual lovefest, sharing his own heartfelt message on Instagram, writing: "Congratulations to these two attractive people ♥️ As they begin this exciting journey together we are so so happy for you guys @brooklynbeckham @nicolaannepeltz @victoriabeckham ♥️". I love you so so much baby and thank you harper for this pic'.
"You've made me the luckiest girl in the world", Peltz, 25, wrote in a message on her own feed.
Underneath her post, Brooklyn replied: ' My girl forever xxx I love you more than anything'.
Nicola captioned the image: "Yesterday was so handsome thank you for the photo @victoriabeckham". "Congratulations to these two attractive people".
Meanwhile, according to a source close to The Mirror, "Brooklyn has been telling his friends in LA that he and Nicola are engaged".
For Brooklyn's birthday in March, Nicola took to social media to post a series of photos of her beau. "As they begin this exciting journey together we are so so happy for you guys @brooklynbeckham @nicolaannepeltz @victoriabeckham", David wrote on Sunday morning. "I love you baby", added the model and aspiring photographer, who also posted a photo of himself and Peltz in an embrace. We all love you both so much x @davidbeckham @romeobeckham @cruzbeckham #HarperSeven.
'The MOST exciting news!' she wrote, sharing the same picture.
The star is best known for her role as Bradley Martin in Bates Motel and as Tessa Yeager in the fourth Transformers film, Transformers: Age of Extinction.
She is the daughter of billionaire tycoon Nelson Peltz and former model Claudia Heffner.
"A few of his friends have teased him about it but Brooklyn is adamant that there was nothing "Oedipal" about it", a source told The Sun in October a year ago.