Kevin Jonas hasn't changed since getting married.
Nick Jonas said: "He's still the same old guy. He just has a wife now, which is great! We like having her around."
Kevin's 'Camp Rock 2' co-star Jasmine Richards also approves of Danielle, saying: "Danielle often visits us, and she's such a sweetheart. They're always holding hands, and they're truly in love."
Kevin recently said he isn't worried his marriage will split the Jonas Brothers apart.
The 22-year-old star has been joined on the trio's current US tour by his spouse and even though they travel on a separate bus to his brothers Joe, 21, and 17-year-old Nick, he insisted the new addition to their entourage doesn't cause any problems.
Kevin said: "Adding a new element to a rock band is always risky.
"But with Danielle, it's been all good. And the brothers still find time to hang out, just the three of us, too.
"We spent the first two nights of the tour on Joe and Nick's bus, and that was fun. They joke around with her all the time, just like she's their sister."