[Sirosaki Aroe] Soredemo Aniki ga Daisuki de [Full Color] [HKappa Patreon]

A devious younger sister seizes the moment when her brother's girlfriend—flirty Mina—is out of the house, throwing herself at him with reckless, tearful desperation. Torn between guilt and her overwhelming, possessive craving for his cock, he soon caves to her relentless oral advances and finds himself buried deep inside her right there on the floor. The chaotic, messy climax leaves him lost in forbidden bliss as she confesses that this secret happiness is the best thing in her life, promising their steamy, betraying affair will never end.