The reality star, who in May received threats after hanging out with the pop star at the White House Correspondents' dinner, posted a sneak peek of their upcoming fashion spread on her blog Tuesday.
"Remember those paparazzi pics of me and Justin Bieber in the Bahamas!? Well I can now reveal that we were shooting for Elle Magazine!" Kardashian, 29, wrote.
"I just received the pics from the shoot and I absolutely LOVE how they turned out!" she adds. "The theme of the shoot was The Graduate for obvious reasons, LOL."
Along with a shot of the two playing on the beach, Kardashian and Bieber posed lounging underneath a palm tree. In another photo, the glammed-up Keeping Up with the Kardashians star – in sky-high stilettos – works out on an elliptical while watching the 16-year-old on TV.
"Justin and I had such a fun time together at the shoot," she says at the end of the post, before asking fans for their thoughts.
So far, it doesn't look like she's gotten any tween hate mail – though one reader quipped, "Ain't that jail bait young lady?"