Maralee Nichols and Tristan Thompson’s son is growing up so fast.

The fitness influencer recently shared video of her baby boy’s major milestone.

Sadly, his father, TT, is a non-existent father to his one-year-old with Nichols. She gave birth to Theo on December 1, 2021.

The NBA star’s paternity scandal with Nichols broke in November 2021 while he was exclusively dating Khloe.

Thompson has decided to NOT be involved in Theo and Nichols’ life.

She seemingly shaded TT’s decision via her Instagram Story.

Nichols shared a video of Theo walking in a kid’s play area.

The caption read, “My baby is walking everywhere now 🥺.”

Thompson is paying retroactive child support to Nichols for his months of avoiding paying it.