FNS-189-lada · [LADA Decensored] Frustrated Big Sister's Stealth NTR: Secretly Stealing Her Little Sister's Boyfriend's Cock - Rui Shinomiya

Rui, the older sister, returned to her parents' home after a fight with the boyfriend she had been living with. She thought she would just stay in her sister's room for a while, but her sister has a boyfriend they are head over heels in love, and Rui is treated as a nuisance. One day, by chance, Rui hears the sounds of the two having sex, and begins to masturbate using the sounds of their kissing and moaning as her "side dish." With her pussy soaking wet, Rui can no longer stand it. Even though she knows he is her sister's man, her greedy nature gets the better of her, and she can't help but reach for his cock...