ichika, my too cute younger sister, teases me by showing me her pantyless state during a meal. one day, my wife decides to go on a one-night company trip. that night, the little devil ichika shows her true colors, suddenly giving me a night blowjob on the bed where i'm sleeping, and continues to lick me even while i'm on the phone with my wife. my reason collapsed at her too cute expression, and i end up having intense sex all night long with my younger sister. i wake up in the morning with a cute kiss, and because she's too cute, my libido doesn't stop, and i raw dog her while feeling guilty!!