[Ebiten Kaidou (Templus)] My Tiny and Huge Senpai {Doujins.com}

Kumuri-senpai's tiny frame and enormous chest make her the talk of the academy, until a magical contract she never bothered to read binds her to repay her loans with her body until graduation. Her smug kouhai wastes no time collecting, working her over with his fingers until she squirts, then burying himself between her massive breasts before finally sheathing inside her trembling, overstimulated pussy. With a whole year of 'installments' ahead and her tearful protests ignored, every climax leaves her more broken in than the last.