In the photo, posted on Friday, Jenner and Styles can be seen walking with a group of friends through a store. However, it's unclear where or when the photo was taken.
4/8/16: Kendall and Harry Styles out and about in LA. pic.twitter.com/VDek7zJh1B— Kendall Updates (@knjdaily) April 8, 2016
If it is them recently, this would be the first time Jenner, 20, and Styles, 22, were seen together in public since they ignited heated romantic speculation after a New Year's trip to the Caribbean together.
More recently, Jenner and Styles were seen at the same L.A. party, though separately.
"They will stay in touch and plan on meeting up soon again," a source previously told PEOPLE about the pair's New Year's together. (The two were first linked in January 2014.)
But in March, PEOPLE confirmed that Jenner was dating Lakers player Jordan Clarkson, and had been for months.
"They have been secretly dating for months and they are super into each other," a source told PEOPLE then. "He is super sweet and a total gentleman and Kendall loves that."
And of Styles, another source said, "She really likes Harry but he's like any other young rockstar and has trouble committing."
Back in January, Jenner's sister Khloé Kardashian confirmed that she and Styles were "hanging out."
"Do I think they're dating? Yes. I don't know if they're like boyfriend-girlfriend. Nowadays, I don't know, people are weird with stuff. So I don't know their 'title,' "Kardashian told Entertainment Tonight, using air quotes. "But I mean, they were in St. Barts together hanging out, so to me that's dating. I would call that dating."
That set off a whirlwind of speculation about where the pair would be headed next, but both Jenner and Styles have been keeping mum, as they have about their relationship all along.