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Justin Bieber might be a pretty boy, but he's not afraid of getting down and dirty!
Selena Gomez's ex and rapper Lil Twist were "Ridin dirtyyyyyyyyy" on ATVs Wednesday.
The Biebs Instagrammed a few shots of "Me and Twizzy getting a little muddy."
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"fun day," Justin tweeted that afternoon.
Well, that much is clear from the pics. We just hope these four-wheeling friends are wearing helmets when they're in action!