A representative for teen sensation Miley Cyrus has dismissed rumors suggesting the underage star has slept with her model boyfriend Justin Gaston, insisting she abides by her mother's "strict" rules.

Cyrus, 15, joined her mom Leticia and her manager in the front row at Los Angeles Fashion Week on Wednesday, where Gaston was modeling for designer Christian Audigier. According to the New York Post's PageSix, Cyrus and Gaston "were all over each other backstage" at the fashion show, and the 20-year-old aspiring rocker blew kisses and winked at her every time he passed her on the catwalk.

A source tells the publication Cyrus 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 the singer/actress' spokesperson has denied any illicit behavior took place that night, saying: "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."

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(This news article provided by World Entertainment News Network)