PRED-257 It was supposed to improve my premature ejaculation, but my penis became stupid as Yuki-sensei's sharp cowgirl position. - Yuki Takeuchi

Yuki Takeuchi, first female teacher! - Mr. Yuki, who is too caring, explodes in frustration when he hears about his student's problem with premature ejaculation! - "Shall I train you in the teacher's cowgirl position...?" The instruction begins by straddling him and blaming him with dirty talk, without worrying about the place or time! - Secretly netting in the locker room, playing in the classroom after school, and even visiting your home all of a sudden! - A hard & sticky phantasmagoric cowgirl position that continues no matter how many times you cum! - My gym teacher's guidance is so pleasant that I'm already becoming an idiot...!