Gomu wo Tsukete to Iimashita yo ne… – Episode 1 (EN)

When the door opens, protagonist finds Nanami—his girlfriend Mamoru's cool, expressionless little sister—standing there with her voluptuous, curvy body and enormous swaying breasts. She notices his gaze lingering on her thick thighs and jiggling chest, then sighs: "Fine... I'll make you cum, so hurry up and take it out."

Nanami starts with skilled handjob and deep, sloppy fellatio, forcing repeated gushing orgasms that leave him a mess. Still aroused, she allows him to rub against her panties: "You can use here... but no inserting." Overcome with lust, he slips inside raw and creampies her without permission, earning a cold "You're the worst..." even as his erection refuses to fade.

Emboldened, he escalates to rubbing on her sweaty armpits, hair, and huge tits, unloading massive sticky loads. But in the heat of the moment, semen accidentally splatters her precious smartphone—leading to unpredictable consequences. Packed with dynamic animation of bouncing mega breasts, reluctant-yet-teasing service, and taboo sibling dynamics, this high-production hentai delivers non-stop arousal for fans of big-tit, creampie, and coercion themes. Perfect for viewers seeking faithful doujin-to-anime adaptations with explosive visuals.