[Kuromasu] Hahaoya ga Motteta Josei Hormone-zai wo Itazurade Nonjatta Ko no Matsuro... 2 [biribiri]

An anxious schoolgirl, her uniform straining as hormone pills cause dramatic breast expansion and overwhelming sexual urges, cries for help before a lecherous schoolboy in a suit ambushes her in a public bathroom. Trapped and flustered, she alternates between panic over being expelled and ecstatic delight as his large member fills her tight, youthful body, leading to a heated encounter that mixes fear of arrest with the thrill of losing her virginity. The story culminates in a messy climax where she surrenders to the boy's advances, their secret liaison promising a lasting, illicit romance despite the looming consequences.