Piggy like Rihanna.
The piglet has the stand firm and twerk thing down pat. The discipline the piggy shows to resist moving its back legs is very impressive for its age. And if you look closely, the pigs facial expression is dangerously close to Rihanna's in her music video.
Take out the table leg from the pigs video and put Drake in and its virtually the same. Rihanna grinds Drake, piggy grinds wood, makes sense. And look Rihanna and the pig both have teats and aren't afraid to show them.