What goes on in Vegas most certainly will NOT stay in Vegas here!
Watch it go down (below)!!!
You're on vacation, Rihanna! That means you're not supposed to be twerking! LOLz!
The Bad Girl was def not thinking about a family friendly animated avatar as she stretched and posed her bikini clad form by the pool in Greece.
Ch-ch-check out the pics (below) to see RiRi Stay in some pretty impressive positions- especially considering the bare knees!
Your move, Miley Cyrus!
[Image via Instagram.]