ぼく、もう出ちゃう!～弄ばれたソーセージ～

あらすじ

"AAAAAA! Am I sick, big sister!?" One day Kenta-kun spurted white pee from his penis and ran to his beloved onee-san in a panic. Oh dear oh dear, he's still such a young thing. Dirty sexy older sister decided to show him that white pee is a good thing... Out came her vibrator. She helped him milk out another splashy load! ... Then he was primed for their perverted uncle...