Quicksand Fans

I remembered seeing a drawing in DA wherein a brown skinned lady was trapped in beach quicksand with a snake wrapped around her. She attempted to use a spell to get out only to accidentally cast one that made her twerk her booty and charm the snake.

Does anyone know if I can find it anywhere?

Try checking the page of LS-Artist-Official. I believe it's called Rundia in Beach Quicksand.