You went to a beach, chilling in your summer vacation of your university. You suddenly saw a naked woman with straight balck hair to her elbow, blue eyes and brown skin getting into the sea. You follow her and dive, and she her transformation: gills grow on her. Her head become pointy and hair disappears. Her waist become bigger and round, making her breasts, vagina and butt disappear. A fin will grow on her butt, fusing it with her legs. She become a shark with sharp teeth, pointy snout and streamline body.