The 27-year-old and 33-year-old pro dancers welcomed a bouncing baby boy named Maddox Laurel Boss on Sunday (March 27) in Los Angeles.
He weighed in at 8 lbs 15 oz, and was 22 inches long.
“(Maddox‘s birth) was truly an unforgettable moment and we are grateful to everyone that shared in the experience and made it so monumental. Our family feels full!” Allison and tWitch said in a statement. “Maddox already has the best big sister Weslie, they have already bonded and share a truly beautiful love.’
Allison and tWitch announced that they were expecting in October on Dancing With The Stars. Congrats to the happy family!