Otouto ga Shishunki!?

Buy official english version on An OneShota (older girl x younger boy) themed book about an older sister that cannot quite refuse her younger brother's requests. Both the sister and brother are not particularly experienced, so there is a sweet feeling of innocence and naivety.. A work of pure fetishism. Like.. "THIS is the kind of older sister / younger brother I wanted." That's what I had in mind thematically when I was drawing this manga.