[BLACK DOG (Kuroinu Juu)] Is This Female Teacher Actually a Slut?

Student Yoshioka-kun discovers that his voluptuous, bespectacled teacher Yukari-sensei hides one fatal weakness—nipples so sensitive they melt her composed educator facade into trembling shame. What begins as his brazen harassment escalates through breathless fellatio and a swallowed load to her being pinned and taken raw, her protests dissolving into climaxes she swears she can't control while he threatens to fill her up. Every sweat-soaked page dares the reader to answer the title's question as this prim teacher comes apart beneath the one student determined to piston her into submission.