North West had one epic third birthday party, and on the heels of her mermaid-themed bash with bestie Penelope Disick, her mom Kim Kardashian West showed off a full-length shot of their mommy-and-me mermaid moment.
In the snap that the Keeping Up with the Kardashians star shared on her website Thursday, North flashes a big smile as she holds on to her mom's hand, rocking French braids, a shell halter top and a glitzy pink mermaid skirt. Kim stands by her side in a mermaid-style, shimmery green dress complete with a shell halter top and green tulle at the bottom.
If Kim's dress looks familiar, there's a reason. It's actually a throwback costume that Kim wore on Halloween a few years ago.
"North and P had a joint mermaid party over the weekend!," Kim captioned the snap. "They are obsessed with mermaids, so we gave the party a fun 'Under the Sea' theme. Thought you guys might want to see more pics from the occasion!" She continued, "How cute is this mermaid costume North had on?! I had to bring out my 2012 Halloween costume, when I was a mermaid. I can't believe it still fit! North was in awe, and I knew I would get major "cool mom" points for wearing this."
Kim, Khloé Kardashian, Kylie Jenner, and Kris Jenner all posted aww-inducing photos and Snapchat stories of the party while they were there, and Kris even shared a shot of Kim and North's costumes from the back as well on Thursday." In love with these pics from North and Penelope's mermaid-themed birthday party!!!," she wrote alongside it.