Uchi no Otouto Maji de Dekain dakedo Mi ni Konai? – Episode 1 (RAW)

In this first episode of the OVA series from Rune Pictures, based on Chinjao Musume's hit adult doujin CG, shy little brother Nao hides a secret: despite his small stature, his penis is freakishly huge, causing him endless embarrassment. His playful stepsister Chiaki finds it hilarious and invites her two hot friends over for an impromptu "viewing party." Blonde gyaru Nagisa and elegant Yukiko arrive expecting a laugh, but the moment they see Nao's massive cock, their teasing turns to genuine arousal. The girls poke, prod, and play with it, marveling at its size while Nao panics being surrounded by older women. As hands wander and clothes come off, the situation escalates fast—Chiaki's joke becomes a full-on group exploration of Nao's impressive tool. The episode builds intense erotic tension with close-ups, dirty talk, and escalating sexual acts as the women lose control to their curiosity and desire. Produced with high-quality animation by Rune Pictures, this title delivers classic big-dick humiliation mixed with group teasing and eventual wild harem-style action. Perfect for fans of size-obsessed, incest-tinged, and gyaru/ojou-sama fantasies. Watch the full uncensored stream free on HentaiHD!