Khloe Kardashian At 1 OAK Nightclub
Credit: Mindy Small/FilmMagic

Cool aunt Khloe Kardashian strikes again. The star posted a photo of her nieces, 2-year-old North West and 3-year-old Penelope Disick, hamming it up in adult-size sunglasses during a poolside playdate—proving once again that the cousins are the cutest little cousin duo on Instagram.

Khloé recently opened up about what it's like being an aunt to some of the most famous kids on the planet on her website. "I love everything about being an aunt," she says. (North's mom and dad are Kim Kardashian and Kanye West while Kourtney Kardashian and Scott Disick are Penelope's parents.)

But as far as discipline goes, Khloé knows she's the fun one: "They say it takes a village to raise a child—that couldn't be more true. We all have so much fun helping raise each others' kids," she says. "It's funny—I discipline Kourt's kids the way she would (except I actually let them eat fun food!) but with Kim ... she's a little more strict with North."