SSIS-127 The tsundere big-breasted little sister in her rebellious phase was made to cum repeatedly by her elder brother's super hard dick over a three-day period with no parents around.

Due to his parents' remarriage, 'uta' and her stepbrother started living together. The rebellious girl couldn't stand her stepbrother's presence and would get irritated every time she saw him. However, being in puberty, she would masturbate in her room every day. Little did she know that this act of self-pleasure would... One day, both parents were away for three days, leaving the two siblings alone. The stepbrother had been secretly filming her solo acts and used it to blackmail her into having sex. Humiliated but with an incredibly compatible downstairs, she reached climax after climax over 72 hours.