The couple announced the good news on Sunday, October 25 with a festive Instagram photo timed with Halloween.
In the photo, Deena has a hand on her stomach while wearing a "Hocus Pocus" themed t-shirt reading, "I Smell a Child." Chris, meanwhile, has on a shirt reading, "Can't Scare Me My Wife Is Pregnant," as little CJ wears one that says, "It's No Trick, I'm Gonna Be a Big Brother."
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Messages written on the pumpkins and sign around them confirm "Baby Buckner #2" is due May 2021.
"We're so excited to announce we're expecting Baby Buckner #2 May 1, 2021," Deena captioned the post. "Our hearts are filled with so much love and joy! CJ is going to be the best big brother ever!!! #blessed #growingfamily sooo for everyone that was asking YES YES YES ..I'm pregnant."
This is the second child for the couple, who tied the knot in 2017 and welcomed their first son in 2019.
"Anotha 1! Love you so much babe," Buckner wrote in the comments on his wife's post. "To the best mama bear ever!"