Otoko da to Omotteta Net no Tomodachi ga Jitsu wa Onna de Seiheki Bareteru

A protagonist meets up with his internet friend to discuss fetishes, only to discover his supposed male buddy is actually a girl named Ryo. Dressed exactly to his specific tastes, Ryo playfully teases him about his preferences, leading him to masturbate in a public restroom before she pinches his nipples and steps on his head at a park. They then head to a love hotel where she dominates him, using her feet and legs to bring him to climax multiple times. The two establish a regular routine of meeting up, with Ryo wearing her old school uniform and treating him like a dog to further indulge his desires. A week later, she asks him to be her boyfriend instead of just a slave, which he happily accepts. The teasing and domination continue throughout their relationship, eventually leading them to become a happily married couple three years later.