Ruka Itoi, a student teacher who started her practicum at the school last week. She seemed quiet, shy, and unassuming—her soft voice and unobtrusive presence making her nearly invisible. She never talked with anyone in class, yet somehow, she'd gradually become someone I couldn't help but notice. One day, we ended up alone in the classroom, and slowly, she began unbuttoning her blouse, revealing soft, fluffy, perfectly shaped pink nipples. Shocked, I blurted out, "Her tits—popping out? Huh? Huh? Why?!" Turns out, she had big tits all along. As a teenage boy in the throes of puberty, I couldn't hold back—I dove straight for her breasts. Then, the teacher gave me experiences I'd never had with girls my own age: deep tongue kisses, intense nipple play, expert blowjob, and titty fuck. From that day on, every time we were alone, she'd expose her breasts, licking my ears, nipples, balls, glans, and even my anus, as I was taken over and over. Whispering filthy words in my ear, she'd ride me in cowgirl position and creampie me. These past two weeks have twisted my sexuality completely—I'm no longer satisfied with ordinary sex.