05/08/2009 05:12 am ET Updated May 25, 2011

Cat Cora's Partner Gives Birth To Her Biological Son Thatcher Julius Cora

Celebrity chef Cat Cora, still pregnant, just became a mom again.

Cora, the star of 'Iron Chef America,' already had two sons with wife Jennifer Cora, Caje and Zoran. Both women gave birth to one of the older kids, and became pregnant at the same time with babies three and four.

Over the weekend, Jennifer gave birth to Cat's son Thatcher Julius Cora.

All four kids were conceived using the same sperm donor, with Jennifer carrying Cat's biological child and vice versa.

Cat is due in June with another baby boy.

The couple's rep explained why they chose the name. "Cat and Jennifer loved the old English name Thatcher, and Julius was Jennifer's grandfather's name," the rep says. "Both mom and baby are doing great!"