Joanna Gaines’ sister welcomes her sixth child: See the family photos!

Babies, babies and more babies! Shortly after Fixer Upper stars Chip and Joanna Gaines announced they were expecting their fifth child together, Joanna shared another exciting family announcement on Thursday.

The Waco, Texas, interior designer revealed that her younger sister, Mary Kay McCall gave birth to her sixth child in a series of sweet Instagram pics.

“My sister had her beautiful baby girl! #motherofsix #butshelooks16,” Joanna captioned the hospital room shots. In one pic, the reality star is cradling her new niece.

The siblings have been sharing lots of sweet memories lately. Earlier this week, a previously taped episode of Fixer Upper featured Joanna and Chip finding and fixing up a new home for Mary Kay and her family.

“It’s my all time favorite reveal because we FINALLY get to do a house for my little sister!” Joanna wrote on Instagram prior to the episode airing. “They (5 Kids + one on the way) are moving back to Waco after nine years away.”

Chip and Joanna announced earlier this year that they were leaving their hit HGTV show to focus more on their family.

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