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Kylie Jennercouldn’t resist poking fun at her sisters’recent feudon her 21st birthday.

Hours afterpartying the night awayin honor of Jenner’smilestone birthdayon Friday,Kourtney Kardashianposted some photos of herglam lookfor the Kylie Cosmetics mogul’s big bash.

Hopping on thefamily jokethat all of the KarJenner clan were turning 21, the 39-year-old mother of threecaptionedthe photos, “Thank you all for my birthday wishes.”

“Happy birthday,” the Lip Kit entrepreneur commented, before referencing the savage diss that escalated Kim Kardashian West and Kourtney’s explosive fight into an all-out feud.

“You’re so interesting to look at,” Jenner wrote.

Kourtney Kardashian/Instagram

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During the season premiere ofKeeping Up with the Kardashianslast week, Kim and Kourtney got into a fight while the KKW Beauty mogul, 37, was trying to schedule the family Christmas card shoot.

RELATED VIDEO:Kourtney KardashianSays She’s ‘Ashamed’ of Her ‘Disgusting’ Family: ‘It’s Just Gross’

Their feud also continued on Sunday, as the sisters hashed it out on social media while the episode was airing.

“Watching this fight actually gives me chills,” Kourtney told her followers, before later adding that “We all have all our own priorities. Mine is being a mother.”

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Kim was none too pleased with the comment, retorting on Sunday night, “And mine is not?The shoot was with our kids!!!!! My #1 priority is being a mother as well and I can work too, so can you!”

Kourtney thenwent on the defensive, responding to her sister: “And I do. But I wasn’t wanting MORE work, I already felt spread thin. Being a good mother also has different meaning to each of us. You’re an amazing mother, I’m not taking that away from you.”

“Don’t ever get it twisted, me, Kourtney and Khloe are GOOD! ALWAYS!!!! Never question that!” Kim wrote.

Kourtney also went on to affirm Kim’s statement, before explaining that this season, fans can expect to see her standing up for herself a lot more.

“We’re ride or die. But I don’t accept the way we criticize and judge each other anymore. My personal growth doesn’t allow it,” the eldest KarJenner sibling said.

“In the past no one could get to me. I taught @KimKardashian how to fight dirty. But people grow, and just because we’ve always done it, doesn’t make it ok. This season you will see the Kourtney who has feelings,” she added.

source: people.com