Kendall Jenner and
The "Keeping Up With the Kardashians" star spilled the tea on her younger sister's romantic life -- well, her take on it anyway -- after photos surfaced of Jenner and the One Direction heartthrob vacationing together in St. Bart's over the holidays ... and kissing!
"They were hanging out together. 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. "But I mean, they were in St. Bart's together hanging out, so to me that's dating. I would call that dating."
Jenner, 20, and the British singer, 21, celebrated New Year's Eve in the Caribbean last week and were photographed canoodling on a yacht and hanging out with TV host Ellen DeGeneres and her wife,
The "Kocktails With Khloe" host further detailed how she's not sure how serious the young lovers are.
"I don't know if they've had that talk yet," the 31-year-old said. "Do people still have the talk? You need the talk ... I don't believe in assuming what you are. That's ridiculous."
Insiders told People that Styles, who is known for having dated singer Taylor Swift, thinks the brunet Victoria's Secret model "is hot" and "was sort of just waiting for a chance to spend more time with her again." The insider added that they'll stay in touch and plan to meet up again soon.
Still, the coupling may make for some awkward double-dating. Jenner's pal and fellow model Gigi Hadid, a pal of "Blank Space" crooner Swift, is currently dating ex-1D singer Zayn Malik, who publicly broke with the mega-popular boy band last year.