The Biggest Loser third-season lovebirds Marty and Amy Wolff have welcomed a big bundle of joy.

Amy gave birth to the couple's first child on the Fourth of July at Alegent Lakeside Hospital in Omaha, NE, People reported Sunday.

Blaine Patrick Wolff weighed 10 lbs., 14 oz. and was 22-and-a-half inches long at birth.

"We are all doing great and are enjoying getting to know each other," Amy told People.

Marty and Amy met on The Biggest Loser's Fall 2006 third season before he proposed to her during NBC's broadcast of a The Biggest Loser: Where Are They Now? reunion weigh-in special that aired in 2007.

They were married in a small Charleston, SC ceremony in March 2008 and announced they were expecting their first child together in December.