Casey Anthony is an aunt!
The 27-year-old welcomed her first nephew, RadarOnline.com has exclusively learned.
Her brother Lee Anthony's wife Mallory Parker Lee gave birth on August 22 at 12:55 a.m., and the baby boy weighed in at 8 pounds, 6 ounces and 22 inches long.
Named for Mallory's maiden name and after Casey's brother, the boy is named Parker Lee Anthony.
According to an insider, the baby was born healthy and Mallory and Parker were released from the hospital the following day to go home — but there's no word if Casey has met her new nephew yet.
It was Radar who exclusively reported in April that Casey would be an aunt and that her sister-in-law was pregnant.