Different to the somehow disgusting and low video from artists like Miley Cyrus where there’s more shocking than dancing or choreography, the “Twerk Lesson” clip is a master class in a provocative dance style that has dominated music video for the past decade. And even if you think you’ve seen twerking perfected in recent hip-hop and R&B clips, you still might not be ready for Lexy Panterra’s jelly. The four twerking sequences in this “Lesson” aren’t just sexy — they’re astonishing, too. As all fans of R&B video know, a great twerker makes moves that seem impossible for the lower body to do. Panterra’s buttocks turns the laws of physics inside out.