Have you ever skipped class and gone to the nurse's office? Lying on the bed, I suddenly hear someone walk in—shockingly, it's miru sensei! Instead of scolding me, she lets me off the hook in exchange for my nipples. Smirking, she gently teases them, introducing me to a pleasure I've never felt before. Surprised by the sensation, I naturally get an erection. But the teacher doesn't miss a thing. With no one coming during class, she uses the full time to start an ejaculation endurance lesson. Vacuum blowjob while stimulating my nipples, handjob while squeezing them, intense ejaculation techniques—this pleasure is completely different from anything I've known. Even as I desperately try to hold back, just before class ends, she suddenly mounts me. Hard, pounding cowgirl thrusts fill the room with slapping sounds... Shit! Shit! Shit! There's no way I can endure this! But because I was made to hold back, I end up experiencing the most intense orgasm of my life. From that day on, me and the teacher kept repeating this over and over.