[antyuumosaku (malcorond)] Seishidouin no Oshigoto 4 Zenpen Ii Tokoro de Mizu o Sasareta node Mugon de Banban Tsuite Ageta

When ponytailed Natsumi catches wind that her classmate Nanako has been getting special private lessons, she marches right up to the heavyset instructor and demands he teach her instead—volunteering her tanlined body before she fully understands what she's signing up for. What follows is a relentless hands-on education: bent over and pounded from behind until she's a sobbing, sweating mess, then having her mouth borrowed as a warm-up hole while he lectures her on proper technique. Between bathroom stalls and x-ray glimpses of her tight womb taking every inch, this eager student discovers her instructor's curriculum goes far deeper than she ever imagined.