Duggar Sisters Compare Their Pregnancy Bodies in Jill & Jessa: Counting On Clip — Watch

Duggar Sisters Compare Their Pregnancy Bodies in Jill & Jessa: Counting On Clip — Watch

Make room! Jill and Jessa Duggar are sizing each other up in an Us Weekly exclusive sneak peek clip from the Jill & Jessa: Counting On premiere.

The footage from the Dec. 13 premiere of TLC's three-part special shows Jill comparing her pregnant sister's size to her own. When the episode was filmed, Jessa was nearing her due date for son Spurgeon, who she and husband Ben Seewald welcomed on Nov. 5. Jill and husband Derick Dillard's son, Israel, was born on April 6.

"You are not as big as I was, either," Jill, 24, tells her younger sister, claiming she was "massive."

"Yes, I am," Jessa, 23, replies. "I just wear lots of dark colors."

Pregnancy is not without its challenges for Jessa, who admits to misjudging how much space she currently takes up.

"I always think I'm narrower than I am," she admits. "I always think, 'Oh I can fit through there.'"

As Us previously reported, another preview clip shows the sisters and their siblings addressing their family's tough year, including oldest brother Josh Duggar's cheating and child molestation scandals.

In May, Jill and Jessa defended their family on Fox News' The Kelly File after news broke that they were among the young victims sexually abused by Josh when he was a teenager.

To hear Jessa explain how her parenting style will differ from Ben's, watch the clip above.

Jill & Jessa: Counting On premieres Sunday, Dec. 13, at 8 p.m. on TLC.

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