Khloé Kardashian roasts Kim for wearing gown to son’s birthday

Khloé Kardashian razzed her sister Kim Kardashian for wearing a red carpet gown to her son Tatum’s 2nd birthday party Sunday.

The Skims co-founder arrived in a skintight, shimmering gold gown that she accessorized with a matching purse, while other attendees showed up in more casual ensembles.

“Wowee, the Golden Globe is here, ladies and gentlemen!” Khloé, 40, quipped in a video shared to her Instagram Story as Kim’s daughter Chicago clung to her mom.

Kim, 43, interjected the Good American co-founder’s taunts by claiming she had called to ask whether she should wear something “fancy” or “workout clothes” to the dinosaur-themed bash.

The birthday boy’s mom, meanwhile, opted for a white flared minidress and a pair of white Nike sneakers.

Khloé’s longtime pals Malika and Khadijah Haqq took the more casual route, with the former coming in a crop top and leggings and the latter choosing camo pants and a black T-shirt.

The “Revenge Body” alum spared no expense for her son’s extravagant soiree, which transformed her property into a “Jurassic Park”-like oasis with life-size dinosaur sculptures, balloon arrangements and pool floats.

Khloé and her ex Tristan Thompson, who is Tatum and his older sister True‘s father, surprised guests with a custom three-tiered cake.

“How cute!” the former “Kocktails with Khloé” host exclaimed of the ornate design.

Tatum’s bash comes after the Kardashian family was on hand to help Tristan, 33, celebrate his brother Amari’s 18th birthday at his Hidden Hills, Calif., home Saturday.

Khloé posed for a snap with the teenager and wrote on Instagram, “Happy 18th Birthday sweet angel Amari!! I can’t believe you are 18! You have changed our lives in the best possible ways!”

She continued, “Thank you for being an angel to us all! You are the sweetest, silliest and most loving young man. I hope you feel how much we love and adore you our sweet angel Amari.”