The picture (taken in black and white) shows Khloe's outstretched palm cradling her niece's little arm. North's face isn't visible, but her striped onesie is -- though it's hard to look at anything other than Khloe's massive diamond watch.
"NW," the 29-year-old reality star captioned the shot. She also added a lipstick emoji icon.
One day earlier, the DASH designer posted a different picture of two hands -- hers and Kendall Jenner's. "My boxing buddy @KendallJenner and I went HAM," she wrote alongside the photo, which showed the sisters' palms wrapped in printed boxing bandages.
"Can't move my arms after that boxing class w/ @KendadllJenner," she tweeted. "Love/hate this feeling! We accomplished something. Our faces were SOOO red. LOL."