You can tell that the dude driving the car in this funny Vine video thinks the woman dancing in the back seat to Robin Thicke's "Blurred Lines" is hot by the way he keeps glancing in the mirror. Or not.

This big mama has a jiggle with her wiggle and catches him a little off-guard. Check out the funny 6-second Vine video below and see his funny facial reactions after he notices her shaking it.