Kylie Jenner and Her Guy Hit Up The Grove

Sorry, boys, but it looks like the youngest Kardashian sister, Kylie Jenner, is taken! The 14-year-old sibling of Kendall Jenner, 16, and the famous Kardashians -- Kourtney, 32; Kim, 31; Khloe, 27; and Rob, 24 -- was snapped spending some QT with Austrlian pop singer Cody Simpson, also 14, at The Grove shopping mall in L.A. on Sunday.

Apparently, the new couple met at the premiere of "The Twilight Saga: Breaking Dawn: Part 1" in Hollywood on two weeks ago "and have been inseparable since," a source revealed to Us Weekly. "I would say they are dating," the source continued. "They are a couple! They are so cute together."

Even at such a young age, teens often make a romance last longer than 72 days -- the amazingly short duration of Kim's recent marriage to NBA player Kris Humphries. Do you think Kylie and Cody will manage to stay together longer than that?

Either way, Kylie is definitely having a good month. She and Kendall were recently selected by Seventeen magazine as two of the Style Stars for 2011, alongside other fashionable cuties including Emma Roberts, Willow Smith, and Emma Watson. Then last week, the sisters modeled several ensembles from the new Hello Kitty collection for Forever 21 while hosting the line's launch party in L.A.