What goes on in Vegas most certainly will NOT stay in Vegas here!
Watch it go down (below)!!!
Hook up alert?!?!
But she did find a HIGHlarious way into the pic because she ended up making a video spoofing the Biebs' Brazilian bedmate who recently filmed him sleeping.
During a visit to Capitol FM Breakfast, Mileybird got down in the vid that guest-starred the Biebs and her tongue - of course!
Ch-ch-check out Mileybird's laugh at the Biebs (above)!!!