Stepmother and the surf teacher.

On a secluded beach, Isabelle, a fiery stepmother with a taste for taboo, watches as her stepson Jack, an aspiring surfer, struggles to catch a wave. Frustrated by his lack of progress, she confronts him about his lack of dedication. Furious, Jack storms off, unaware that Isabelle has secretly followed him to the beach house. There, she reveals her true intentions: to become Jack's personal surf teacher, using unconventional methods to discipline him into becoming the best surfer alive. As they undress and head towards the ocean under the cover of night, tension builds between them; their forbidden lust clouding their judgement. Once they're in the water, Isabelle brutally takes control, binding Jack's hands behind his back and forcing him onto his board before climbing onto it herself. She begins a sensual dance on top of the waves, pulling Jack along with her as they both ride towards the shore.