As we all know, Kevin Federline is doing that whole Celebrity Fit Club thing to boost his career. Well, as it turns out therapy is part of the regime and Federline is totally rocking it! People who have therapy with Kevin say he’s a rock of sorts — ‘cool as a cucumber.’

High School Musical’s KayCee Stroh has been so impressed with K-Fed that she yapped to Eonline.com about how the ex-Mr. Britney Spears is such a cool guy.

“Kevin’s as cool as a cucumber,” Stroh tells me. “He keeps it all together. All the rest of us are sobbing like babies, but Kevin is pretty calm and collected…Kevin is really a trouper,” Stroh says. “He’s actually quite shy and quiet and soft-spoken. But when he pipes in, he’s very funny and really witty.”

Hm. Hot new couple — KayCee and Kevin? She better stock up on profilactics!

Photos: Bauer Griffin