They may all wear purity rings, but at least one of the Jonas Brothers is a veritable Latin lover!

Interviewed on Homeschool.com Radio, the superstars’ mom, Denise Jonas, reveals what her home-schooled sons’ favorite subjects are.

“Boy, with that passion, Kevin just excelled at it,” Denise tells us of her son's Latin mania.

“Kevin loves literature and he loves Shakespeare. He also loves etymology, which is amazing. And he loved and he studied Latin,”  says Denise of her eldest boy (left), now 21.

“My husband and I disagreed on if he should take Latin or Spanish. And I said, ‘He has a passion to want to do Latin. Let him do that,'” she tells tells to host Rebecca Kochenderfer.

“Frankie [8], our little one, is in love with science. Nicholas [16] loves English. And Joseph [19] – I don’t know that he has any fav- orite.”

Denise also discusses the home- school curriculum she favors for her musical prodigies.

“That would be Accelerated Christian Education, which is Lighthouse Christian Academy. It works because of our travel schedule. And for my older boys, online stuff is just fabulous,” she says.

But Denise’s exclusive chat about home-schooling doesn’t end there. She also discusses what she likes most about it.

Hangin' (when not studyin') with mom: “It’s so valuable to help your kids learn things that matter,” says Denise, with (l-r) Nick, Joe and Kevin.

“Everything’s an advantage. For instance, it’s great that we can take our kids to a mid- night screening of Jonas Brothers: The 3D Concert Experience be- cause we home- school – and we can sleep in ‘til 10 o’clock!”

Shot in 2008 during the band’s “Burning Up” tour, the 3D flick opens February 27.

To hear more from Denise about her pop-idol sons – including their college plans and Nick’s presidential aspirations – click here.

To learn more about Lighthouse Christian Academy, click here.