Kris Jenner celebrated her granddaughter Penelope Disick—whose parents are Kourtney Kardashian and Scott Disick—turning 13 with a heartwarming social media post.

Penelope's dad Scott Disick and stepdad Travis Barker also joined in to wish her a happy birthday Kourtney Kardashian Barker is celebrating her daughter's major milestone!

Travis Barker and Kourtney Kardashian both celebrated Penelope Disick's milestone 13th birthday with sweet tributes on Instagram.

Penelope was the second Kardashian-Jenner grandchild and first granddaughter to be born following big brother Mason. See her photos through the years as she officially turns 13 ...

Penelope Disick is a teenager! Kourtney Kardashian says her "heart is exploding" as she celebrates her daughter's 13th birthday.

Travis Barker and Kourtney Kardashian both celebrated Penelope Disick's milestone 13th birthday with sweet tributes on Instagram.

Kourtney Kardashian Celebrates Daughter Penelope Turning 13: 'My Heart Is Exploding' originally appeared on Parade. Kourtney Kardashian 's daughter Penelope Disick is officially a teenager!

Kourtney Kardashian ’s daughter Penelope reached a big milestone: she’s officially a teenager! The newly minted 13-year-old, who Kardashian shares with ex Scott Disick, celebrated her special ...

Kardashian Barker shares daughter Penelope and sons Mason, 15, and Reign, 10, with ex Scott Disick. She is also mom to son Rocky Thirteen, whom she shares with her drummer husband, Barker.