Justin Bieber and Miley Cyrus have been friends since 2010, and even though they were snapped sneaking out of the recording studio earlier this spring, we're just not buying the rumors that the single superstars are an item.

Despite recent reports that the two were "flirting" at Beacher's Madhouse and that Justin was seen leaving Miley's Toluca Lake home the next day, X17online can report exclusively that Justin is actually crashing at Diddy's son Justin's pad, which is right next door to Miley's parents' mansion, where the starlet frequently spends the night.

Justin, who plays football at UCLA, has been pals with Bieber for years, and an X17 photographer on the scene tells X17online exclusively, "Bieber's bodyguard is there almost every day -- he's always at Diddy's son's house, it has nothing to do with Miley."

Guess Selena Gomez doesn't have to worry about driving across the valley to beat up her fellow Disney darling after all!