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But brrrrrrr! Isn't she freezing!?

On Monday morning Kendall Jenner stopped by Noah's Bagels near the Kardashian family compound, and the 18-year-old reality starlet showed off her tight abs in a cropped top and skinny jeans. Kendall jetted in to Los Angeles International airport last night after spending the entire weekend with new boy toy Harry Styles, and it looks like she's a little worn out! Or maybe she's just jetlagged and missing her British beau?

After going on a romantic dinner date last month at Craig's (not to mention Harry's sleepover at Bruce Jenner's pad that night), the lovebirds met up at the Gansevoort Meatpacking hotel on Friday in New York City. We're not sure if they spent the night or stayed in separate rooms, but on Saturday they left the hotel together and went to brunch at the nearby SoHo House. A source at the hotel told Hollywood Life that the duo headed back to Harry's room after their date, and the excitement didn't stop there! Later that night the twosome headed to Therapy, a popular gay bar in Manhattan's Hell's Kitchen neighborhood, according to Us Weekly.

Wonder when these two are going to make their first red carpet appearance together? It sounds like they've pretty much made things official...