[Amuai Okashi Seisakusho (Labui)] With My Sex Change App, I’ll Turn Him Into the Perfect Gyaru Slut! [akanameTL]

A bored high school girl discovers a mysterious smartphone app that lets her tweak every physical detail of a male classmate, dialing up bust size, picking "Gyarification" and "Sluttification," and hitting start. By the next day, the boy has blossomed into a busty, blushing gyaru, bewildered by his new bouncing curves and the attention they invite. His classmate eagerly dives in, teasing, fondling, and comparing her own massive tits with his, turning the classroom into a hot, sticky playdate between two increasingly eager girls.