[Oshiro] Dondon Seichou Suru Hatsujou no Igyou Musume to Boku

A curious young boy discovers that the tentacled alien girl in his care is undergoing a rapid, mysterious transformation—her voluptuous body swelling larger by the day while her intoxicating pheromones grow almost unbearably potent. As her curves balloon to impossible proportions and her slick, writhing appendages coil around him, he can barely resist the overwhelming scent driving him to give in to her eager demands. The tension escalates between his desperate restraint and her insatiable, growing hunger in this surreal tale of accelerating maturity.