Sharing the theory to the Bachelor and Bachelorette Spoiler Forum on Wednesday, one viewer picked up on one very tell-tale sign.
Taking to their separate Instagram accounts, Brittany and Nick both shared photos from their single date featuring one another.
It was the captions, however, that accompanied the posts that spark a wild conspiracy theory.
An eagle-eyed fan noticed that Nick and Brittany both used the same phrase, "There's just something about...", and suggested this could be a clue they end up together.
Brittany wrote, "I feel really good about you. This could be the beginning of something incredible...There' s just something about him."
Meanwhile, Nick captioned a video of the couple on their wildlife-themed date and used a suspiciously similar choice of words.
"There is just something about a woman holding a snake," he wrote.
This isn't the first time Brittany has sparked speculation that she wins The Honey Badger's heart.
The radiographer who was born in Port Macquarie - coincidentally, the same place (and hospital) as the Honey Badger.
When the Honey Badger talked to Fitzy and Wippam, he said that all of his ex-girlfriends have been blonde and that this time, he's had a big changer - AKA ended up with a brunette.
"In the past, they have actually been sandy blonde… and that's why I've had a big changer," Nick said.
Further, when a friend commented on Brittany's Instagram, saying, "Britt we are all enjoying the journey but just tell us what we really want….Am [I] going heavy on Sportsbet or not???" The bachelorette coyly responded by liking the comment, prompting fans to think she's giving her friend the go-ahead to place some serious bets.
Plus, while all the women post about the show on their personal Instagrams, Britt's posts have been especially loved-up.
"The perfect end to the most perfect day... 🌹" she wrote on Instagram alongside a photo of her and Nick kissing in the pool. She even tagged Nick's personal account.