Miley Cyrus Has a Secret Sleepover?

After finally going public about her past relationship with Nick Jonas, 15-year-old Miley Cyrus has now revealed that she is dating 20-year-old Justin Gaston!

Recently, Miley sat front row to support her model boyfriend at Christian Audigier's American Lord Spring 2009 bash in Culver City, Calif., alongside her mother, Leticia, and her manager.

According to the New York Post's Page Six, Justin winked and blew kisses at Miley every time he passed her on the catwalk, as she made provocative faces at him. Afterwards, while Miley was backstage, a source stated that Miley was overheard telling a friend that "she was probably staying at Justin's tonight and that they were going to skip the after-party and have a party of their own."

However, representatives of Miley have denied that anything scandalous took place, countering the rumors with, "Miley had a great time at the show, but the whole sleeping-over thing never happened. Miley went home with her mom and manager. Leticia is very strict with her."

Nonetheless, how "strict" could Miley's mom be if she's letting her 15-year-old daughter date a 20-year-old model?