"Hey, big brother? Mom and Dad say they're going to be a little late coming home♪" When my parents are out, it's just me and my sister in a locked room at home... What's more... my sister is a "virile dark-skinned gal"!!! She makes me ejaculate over and over again and forcibly commits incest... I want my parents to come home soon! I don't want my sperm to be stolen by this gal sister! Can I escape from my dark-skinned gal sister who attacks me in a state of sexual stamina only on the days my parents are out...?! ???