Lou Pearlman gives A.J. McLean of the Backstreet Boys sexy piggy back ride

A NATIONAL ENQUIRER investigation has uncovered more strange behavior from Lou Pearlman , including a photo of his piggy back ride for a grown up A.J. McLean of the Backstreet Boys.

In the new issue of The ENQUIRER, Bob Carter, father of Backstreet Boy Nick Carter reveals that Nick's mom was worried Lou had molested her son. "Jane made the accusations when Nick was just 15," Bob Carter told The NATIONAL ENQUIRER. "She took Nick to a therapist because of it. The therapist decided that Lou never touched Nick, but Jane was still convinced of it."

Jane also believed Pearlman could have molested other clients, says her ex-husband Bob.

While Backstreet Boy A.J. McLean's mother, Denise Solis, said she was unaware of it, she wouldn't allow A.J. to stay at Pearlman's house.

"He told us he had a girlfriend, but she lived far away - in California, or Europe," Denise told The ENQUIRER. Now she believes "auditioning all those kids must have been like a buffet to him".