Michael Phelps has taken his son to work.
Phelps and fiancee Nicole Johnson have posted Instagram photos of baby Boomer Phelps in the pool alongside his Olympic superstar dad.
Phelps writes with one posted Wednesday that "the little man loved the water" and they both got some extra laps in. Little Boomer also has an Instagram account in his own name. A photo posted on it shows the baby and his parents with a message that he can't wait until he gets to "learn to swim from daddy."
Johnson gave birth to Boomer on May 5.