Spears and Cohen on Jan. 11
Britney Spears's new man, Isaac Cohen, looks like a keeper – at least according to his agent.
"He's a gentleman, he's respectful and he treats people nicely," Brandi Lord of L.A. Models tells USA Today.
"He's not known to date around."
Spears and Cohen, both 25, were first spotted powerboating on Jan. 2
off Marina del Rey, Calif., and they recently returned from a lavish weekend in Las Vegas
, where they stayed in the $40,000-a-night, two-story Hugh Hefner Sky Villa at The Palms.
"They're a young couple who seem to be having a lot of fun," says Lord, who previously told PEOPLE Cohen is "not a player – he's got a great heart and a good family, and he was raised well."
The 6'1" California native, currently appearing in TV ads for McDonald's and Payless, is different from Britney's ex, Kevin Federline, in at least one respect: "He's not out to be a rapper or a dancer or an actor or anything else right now," Lord tells USA Today.
"I'm sure he will want to do something else when he gets older, but for right now, modeling is working out pretty well for him. He's got a great look."
Cohen has been with the L.A. Models agency for several years, Lord says, adding that since he's been linked to Spears, "he's even more in demand."
Spears has been hard at work herself, working on her new album
at L.A.'s Record Plant studio on Wednesday night.