The former backup dancer and onetime rapper is expecting his fifth child this summer – his first baby with girlfriend Victoria Prince, a source tells PEOPLE.
Federline is already a father of four: sons Jayden, 4, and Preston, 5, with ex-wife Britney Spears; and son Kaleb, 6, and daughter Kori, 8, with ex-girlfriend Shar Jackson.
This will be Prince's first child.
Federline, 33, and Prince, 28, a former professional volleyball player, have been dating for more than two years.
Nathanael Jones / Miguel / Pacific Coast News