[Fetio] Ririshii kedo Kigaru ni Nuitekureru Ore no Nee-chan [SDTLs] [Decensored]

A sweaty, big‑breasted sister with a long ponytail and a thong sits on a bed, her eyes wide and flushed with desire. Her brother, a muscular man with a massive penis, teases her, promising to pull out carefully while she urges him to keep it in moderation. The heated encounter escalates as she declares she must care for a woman in heat until the very end, creating a tense, intimate showdown.