Michael Phelps & Brittny Gastineau: Dating?

Michael Phelps has a new lady in his life – Brittny Gastineau!

The 25-year-old Olympic champion and Brittny, 28, are “really cute together,” a source close to her told People, adding, “It’s just started.”

Over the weekend, Michael and Brittny went shopping at Nordstrom at The Grove before picking up drinks at the Coffee Bean and Tea Leaf.

“She thinks he’s a really sweet guy,” the source said. “She understands his athletic background since her dad was an athlete.” Brittny‘s dad, Mark, played for the New York Jets!