[Sister Mytory (Miginohito Mitsuru)] Otonatte Zurui. ~Kateikyoushi no Onna to Onzoushi no Boku~ [Fantasy Primer]

A pampered young master discovers his prim private tutor has an appetite of her own when she invites his hands to her huge, impossibly soft breasts and spreads her dripping wet pussy open to guide his cock inside. Between lessons he lies awake masturbating to the memory of her mouth, ashamed that such indulgence doesn't befit someone of his status yet utterly unable to resist her. When she suddenly vanishes, the boy sobs alone on a moonlit park bench until she appears beside him, and time eventually rewards their bond with him standing taller than the woman who taught him everything.