[Yokomatsu Hirame] Kareshi Mochi de Namaiki na Imouto ga Neteru Ore no Chinpo de Onanie Shiteta | My Bratty Younger Sister Who Has a Boyfriend Was Masturbating with My Penis While I Was Asleep [MTL]

A careless brother awakens to discover his bratty younger sister, who wears glasses, using his erect penis for self‑pleasure while he sleeps, igniting a shocking cheating scenario that blurs sibling and lover boundaries. She insists it’s just masturbation, yet the intimate act fuels his desire and leads to an unexpected impregnation, promising a future that upends their family ties. The tension escalates as she declares she’s already six months pregnant, turning the secret encounter into a bold, forbidden bond that leaves both stunned and aroused.