Khloe Kardashian’s boy debuts on Instagram

Khloe Kardashian shares her kids’ adorable Halloween costumes.

On Sunday, the Good American founder took to Instagram to post a photo of her little ones all dressed up and ready for a Halloween party.

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“Owlette and Tigger aka True and Baby Brother,” she wrote in the caption.

Here, 4-year-old True holds her brother in her arms as he makes his Instagram debut.

Kardashian has yet to reveal the name of her son.

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It was revealed in August that the reality star and her ex Tristan Thompson welcomed a baby, 2 via surrogacy.

The decision to have another child came before Kardashian learned that Thompson was expecting another baby with Maralie Nichols in December.