Photo: Khloe Kardashian/Instagram; George Pimentel/Getty
A source tells PEOPLE that the NBA player, 31, attended the birthday party on Sunday thatKhloé Kardashianthrew for their daughterTrue, who turns 4 on Tuesday.
“Tristan shows up for every birthday and important event for True,” the insider says. “He is a great dad. He is very involved.”
The source adds that Kardashian and Thompson have been amicably co-parenting their little girl despitedrama surrounding their personal relationship.
“Khloé gets along with him. The focus is on True and they have the same goals for her,” says the source. “They want her to have the happiest childhood possible.”
A rep for Thompson did not immediately respond to PEOPLE’s request for comment.
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PHOTO: Khloe Kardashian/InstagramPHOTO: Khloe Kardashian/InstagramPHOTO: Khloe Kardashian/Instagram
Kardashian documented True’s fun-filled day on her Instagram Story, showing off the pink and purple balloons, flowers and three-tiered birthday cake she got for her little girl.
For the adorable cat-themed party, True was all smiles as she rocked a pink feather-lined Dior dress and matching pink braids in her hair.
The festivities included a trampoline, bounce house and slide, ball pit, face painter and a pool. There was even an appearance from a performer dressed as a Squishmallow cat as well as Squishmallow party favors that said, “True, we hope you have the purrr-fect birthday!”
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Prior to True’s party, another source told PEOPLE that Thompson and Kardashian have “very little contact” with each other while co-parenting.
The Good American co-founder has been posting a lot on Instagram as she spends quality time with her daughter.
TheKeeping Up with the Kardashiansalum also shared clips of True bouncing on the trampolines, saying “Oh no!” as she lost balance and fell. In another clip, the toddler held her nose as she jumped into a foam pit.
Back in February, Thompson documented a night out at a restaurant with True. In a video on his Instagram Story, he smiled as he filmed True sitting next to him eating dinner. Thompson gave her a kiss on the cheek as she giggled.
“My favorite type of date nights ❤️🤞🏾,” he wrote alongside the clip at the time.
source: people.com
