Zach and Tori Roloff, the stars of TLC’s Little People, Big World are expecting their first child.

ZACH AND TORI ROLOFF EXPECTING FIRST CHILD

Tori, 25, married into the Roloff family on July 25, 2015. Zach and his parents, Matt and Amy Roloff have dwarfism, while Zach’s three siblings (even his fraternal twin) do not, and are of average height. Tori also does not have dwarfism.

“It’s going to be the first grandbaby [of] Roloff farms,” said Zach, 26. The show follows the lives of the Roloffs, who own a pumpkin farm in Oregon.

“We are waiting until after Christmas to know the gender to go crazy buying things,” Tori told People. “We are just enjoying the moment right now.”

“I’ll be a fun, hands-on dad, but also the disciplinarian,” explained Zach. “Tori will be a loving mother hen.”

Little People, Big World airs at 8 pm on Tuesdays on TLC.

This is what I left this morning and I was so not happy about it. I love my boys. #inspectorsullivan

A photo posted by Tori Roloff (@toriroloff) on