Joe Jonas says rumors of kinky sex tape with model girlfriend are false

Joe Jonas and Blanda Eggenschwiler relax in the pool in Rio de Janeiro. (© www.splashnews.com)

Joe Jonas, here with and Demi Lovato at the 2011 MTV Video Music Awards, denied he and his model girlfriend Blanda Eggenschwiler were in a sex tape. (Reuters)

Joe Jonas has blasted claims he's the star of the latest celebrity sex tape.

Rumors circulated online claiming the clean-cut heartthrob had romped on film with his Swiss model girlfriend Blanda Eggenschwiler.

PHOTOS: Joe Jonas and girlfriend get cozy

The sordid session was alleged to have occurred in a hotel room in Buenos Aires, Argentina - during the Jonas Brothers' South American tour.

Fans were spared no details of the kinky tryst, including claims the pair smoked drugs and spanked each other with paddles.

More On This...

But a spokesman for Joe, 23, insists no filthy footage exists.

"There is no truth or validity to this story. It is completely false," the rep told The Sun.

The news will be a relief for fans of the Jonas Brothers.

The boys are all evangelical Christian and wore purity rings for years, vowing to abstain from sex until they married.

Go to The Sun for the full report.