The gloomy, submissive man who was controlled by his hot classmate's ejaculation retaliates! HUNTB-301

I'm such a coward, I'm always treated like a submissive toy by hot girls. My hands and feet are tied, my nipples are stimulated with a vibrator, and my penis is played with until I'm about to ejaculate! And then they keep pulling the brakes to control my ejaculation, it's insane! Finally, after my hands and feet are freed, when I suck on her nipple as revenge, I discover she's actually aroused…