Honestly though, whoever tagged this doujin as "incest" as soon as he saw "onii-chan" without even reading the fucking second panel deserves a punt kick in the balls.
Base +6, Raift +6, nyfair +14, Secundus +8, Zarampei +4, Giono +8, Gatsurai +8, wertweet +8, Hellscythe123 +10, kanekalon +1, observer1980 +22, SirKnightThomas +5, as102 +8, and 2 more...