[Toshiue Onee-san Tengoku (Rogaki Tenshi, Sunaba Yuu)] Summer School Innocence [Pure Pazaak]

A curvy, bespectacled young teacher's summer retreat with her students becomes a nightmare when two mischievous boys catch her bathing and secretly film everything on a phone—footage they have no intention of keeping private. Caught off guard and pinned down, the busty beauty finds herself passed between her eager young students, her enormous breasts squeezed and suckled as they hold her arms down and take turns having their way with her. By the end, her own social studies lesson gets twisted into crude flag puns about being 'Hungary' for cock, as the boys turn blackmail into full group domination with every humiliating moment recorded.