I speak the language of the streets. He speaks the language of absolute control. I had ten weeks to pass the most brutal oral proficiency exam of my life. Ten weeks to win the international posting that would clear my mother’s debts and prove I wasn’t just a lifetime of "wasted potential." Enter Sebastian Adler. He doesn't look like any tutor I've ever had. He looks like a library that lifts—tall, hyper-composed, completely unprovokable, and obsessed with rigid rules. When he catches the street vowels in my verbs, he doesn't sigh or give up on me like every teacher before him. He uses a flat, clinical voice to diagnose my ruinous grammar—and then he places his warm fingers directly on my throat to manually shape my mouth. That was the exact moment my pulse committed perjury against me. Suddenly, the ten-week curriculum turns into a high-stakes, bilingual battle of wills. Baz sets up a performance-based reward system: I do the work properly, I earn his hands on my skin. If I drop my register or let a moan ruin a verb structure, the reward layer is suspended. He thinks he’s training my mouth to wear a suit for a corporate interview. He has no idea he’s turned me into a monster who will pull off midnight study sessions just to hear him say good boy in flawless, formal grammar. But as the exam dates loom and the wire between us pulls taut, a ghost from his past threatens to remind us of the oldest institutional lie of all: that this was ever just a short-term contract. Star Pupil, Dirty Mouth is a scorching, high-tension standalone M/M contemporary romance featuring a strict mentor, a brilliant rogue, an intense age-gap dynamic, and a severe praise-kink curriculum that will leave you breathless. Includes a guaranteed HEA.