[Kore Owattara Yakiniku Ikuwa (Kinomoto)] Ame, Later Sister {Doujins.com}

When rainy-day babysitter Kana catches her young neighbor Hira digging through her hidden toy box, mortification quickly curdles into a wicked teaching moment she can't resist. The curvy, big-breasted older woman decides to show the awestruck boy exactly how a vibrator works, letting him watch every glistening detail up close before coaxing him into her arms to nurse at her breasts while the toy hums her toward the edge. A teasing next-door onee-san and one very curious shota turn a careless mistake into a breathless hands-on lesson neither of them will forget.