Brooklyn Beckham and his fiancée Nicola Peltz often express their love for each other on social media – much to the delight of their followers.
But on Tuesday, the actress appeared to confuse her fans when she revealed her surprising nickname for her husband-to-be.
SEE: Nicola Peltz's jaw-dropping engagement ring
Posting two loved-up photos of the pair, Nicola shared that her pet name for Brooklyn is "Seth".
WATCH: Brooklyn Beckham gets engaged to Nicola Peltz
"Me and Seth," she captioned the snaps. Making it clear that Nicola was indeed talking about him, Brooklyn replied: "Love you baby xxx me and you forever," followed by a red heart emoji.
Many fans were quick to question, "Who is Seth?", while others queried whether Nicola affectionately referred to Brooklyn as "Seth" because he reminds her of Seth Cohen – a character played by Adam Brody on TV drama The O.C, which ran from 2003 until 2007.
"Who the [expletive] is Seth?" commented one confused follower. Another said: "Is this an OC TV show reference?" A third added: "Is he your Seth Cohen?"
READ: Nicola Peltz treats fiancé Brooklyn Beckham to huge birthday cake – and it's too good to eat
MORE: Brooklyn Beckham reveals surprising thing he does in the shower – and you should too
© Photo: InstagramNicola revealed she calls Brooklyn 'Seth'
The couple, who got engaged last July, recently had matching butterfly tattoos inspired by a picture Brooklyn took while watching Nicola work on new drama Lola James.
Brooklyn got two large butterflies tattooed onto his arm, while Nicola had a small one inked onto her chest.
Earlier this month, the couple even had matching gold necklaces made using their wisdom teeth.
© Photo: InstagramThe couple got engaged last July
Last week, Brooklyn took to his Instagram Stories to share his and Nicola's new bling, resharing a post from the actress which read: "I got our wisdom teeth made into necklaces. @brooklynbeckham you're my best friend."
He added: "Words can't describe how much I love you @nicolaannepeltz. I'm the luckiest person on this planet xx I will love you forever and ever."
He later added a close-up of their new necklaces and said: "The best gift from my best friend and the most amazing fiancée x I love you like crazy. You are the best thing that has ever happened to me. Love you @nicolaannepeltz."
Like this story? Sign up to our newsletter to get other stories like this delivered straight to your inbox.
