Overdoing it.

Cain's mind stopped for a second asking the how and why, He quickly pulled his leg away but was caught by her. "Master, don't run away!" She didn't want to leave his foot alone.

Cain realized that the only way out was to dive in, trying to be as gentle as possible while still using enough force to pull her away, Cain flipped her around.

"Ah! Master be gentler!" She shook her lower half, taunting him to get faster. Cain easily took the bait trying to go faster and faster, quickly depleting what little remained of his stamina.

Alice smiled, her tail writhed left and right in excitement. Cain was supposed to be dominant but she was quickly flipping the table on him. After a while, she realized the water draining from his face, he was being exhausted quickly.

After just a few moments she could feel him getting softer and softer, his eyes daze into the distance. Alarmed, Alice quickly switched back to her human form and escaped his grasp. "Cain?!"