[Horitomo] Sacrificed to the River God (Bessatsu Comic Unreal Ishukan Maniacs Vol. 3) [Kuraudo]

A rain-threatened village offers its busty, devout miko priestess to appease the raging river god Kashin-sama as the embankment threatens to give way. Delivered alone to a dark cave, the trembling shrine maiden learns the god is a human invention and the true master is a massive tentacled monster that has waited far too long for exquisite prey like her. Bound and completely at its mercy as slick tentacles defile her breasts, mouth and every aching hole at once, her desperate resistance dissolves into helpless, shuddering pleasure while the creature promises to plant its seed deep in her womb and breed her with its incarnates.