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 / Updated  / Source: TODAY
By Erin Clements

Kourtney Kardashian enlisted her mom and sister to ensure that daughter Penelope had a magical 3rd birthday.

The birthday girl and her proud mother both dressed as Tinkerbell for their trip to Disneyland Wednesday, posing for family photos throughout the day.

"Happy birthday to the sweetest little girl in the world. Watching your every little move everyday brings me immeasurable happiness. #toomuchfunyesterdaytopost #disneyland," Kourtney wrote alongside a sweet Instagram snap of Penelope about to dig into an ice-cream sundae.

"You forever changed my life and my heart and teach me so much everyday. Happy birthday my tinkerbell angel," Kourtney captioned another shot of Penelope in her festive fluorescent-green tutu.

The mother-daughter duo even got a photo with Disneyland's costumed Tinkerbell. "I bet you didn't know there were three tinkerbells. #disneyland," Kourtney, 36, wrote.

Kourtney also thanked sister Kim for joining with 2-year-old daughter North.

"MVP goes to @kimkardashian for hanging with my crazy Disney obsessed self for 12 hours of major madness. #Disneyland," she wrote.

Kris Jenner also took to Instagram to share a photo taken with her two granddaughters, writing, "Thank you @disneyland for the most amazing day making yet more precious memories with my kids and grandkids!!!! The BEST!!!! #disneyland #blessed #grateful #bugslife."

And Kim also wished Penelope a happy birthday by sharing a few adorable photos of the 3-year-old enjoying play dates with North.

Earlier this week, E! News reported that Kourtney and Scott Disick had parted ways after nine years together. While Penelope's dad was not part of the Disneyland fun, he offered his own birthday tribute to Penelope on Instagram.