The lighthearted round of online teasing picked up after photographs surfaced showing Pete and Casey Davidson, a basketball player and former collegiate athlete, sitting court-side at an NBA game in New York earlier this week.
The siblings attended Tuesday's game between the New York Knicks and Brooklyn Nets, where Pete's multicolored patchwork pants — very Brooklyn — took center stage.
Comedic flair probably runs in the Davidson family, so when Casey saw an opportunity for quips at her brother's expense, she went for it. "Caption this," she wrote on Instagram, alongside a cropped version of the game-time image above.
Thousands of internet users, many of whom had an actual field day in the comments section of Casey's post, showed the photo some love on Instagram. Kim, despite not following Pete's sister, was one of them.
As expected, the TV personality and SKIMS founder's "like" gave rise to its share of speculative suggestions, with people calling the move a bonding gesture from Kim to Casey.
Whether that's true is anyone's guess, although, of course, we've all been keeping up with Kim and Pete's reported relationship saga for more than a month now and know that Pete, at least, has spent time face-to-face with the former KUWTK star's relatives in recent weeks.