[Ahemaru] Tsubaki NTR'd by her Sister

Tsubaki, the big‑sister, is forced into a brutal incestuous act by her own sister, sparking an intense ahegao expression and a torrent of semen that fills her womb. The relentless pounding and the sister's relentless demands drive Tsubaki to the edge, culminating in a climactic release that cements their twisted bond. The story blends netorare tension with explicit impregnation, delivering a raw, erotic narrative of sibling betrayal.