The dancer's wife, Victoria Prince, is said to be six months pregnant with the couple's child.
Reports first surfaced that the special education teacher was expecting when Kevin, whose marriage to Britney Spears ended in 2007, was pictured tenderly touching his wife's blossoming bump.
Kevin and Victoria and their baby daughter Jordan Kay
Kevin and Victoria have also dropped hints about their new arrival with a series of snapshots which show the couple standing side by side on a rooftop. The mother-of-one is wearing a baseball t-shirt that says "Juan Moore" on the front and "Federline 6" on the back, thought to be read as "One More Federline 6."
Kevin and Victoria, who married in a whirlwind Las Vegas ceremony in August, are already proud parents to two-year-old daughter, Jordan Kay.
The couple's second child will be Kevin's sixth. The 35-year old dancer had two children with his ex-wife Britney – Sean Preston, eight, and Jayden James, seven – as well as fathering two children with his ex-girlfriend Shar Jackson – Kori, 11, and Kaleb, nine.
Victoria and Kevin
While Kevin and Britney went through a difficult patch after their split, the former couple are now on good terms.
Just last month Kevin met the international pop star's new boyfriend, David Lucado, and gave his seal of approval calling him "a cool guy".
The Toxic singer is also hoping to one day expand her family. "I'd like to have more kids, settle down... have kids, maybe twins, and get married," she previously said in October. "That would be nice."