Aubree Lind is excited to be a big sister!

Her mom and step-dad, Chelsea Houska and Cole DeBoer, just welcomed their baby boy — named Watson Cole — earlier this week and the adorable seven-year-old won’t stop holding her newborn brother.

Shortly after Watson was born, the 25-year-old reality TV star’s father Randy Houska shared a photo of his granddaughter Aubree — whom Chelsea shares with her ex-boyfriend Adam Lind — holding her new little brother in her arms.

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“We are overwhelmed with the good wishes as we welcome Watson Cole into our family. In middle of night. During a blizzard. That's how legends begin,” he wrote in the caption.

It seems like Aubs is absolutely smitten with her new baby brother. In another shot, the seven-year-old held Watson in her arms again and Randy captioned the shot, “She won’t share.” He posted another photo of Aubree holding Watson on Twitter and shared it with the hashtag “#LovingArms.”

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She won't share

A post shared by Randy Houska DDS (@paparandlicious) on

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Chelsea and Cole wed in a small, private ceremony last October after announcing that they were expecting their first child together last July. They both announced their baby boy’s arrival on social media by posting the same photo of Watson’s tiny hand grabbing onto Chelsea’s finger.

Scroll through the gallery below to find out how Chelsea chose her son’s unique name!