Both your parents died in a accident when you were 10. Then your uncle and aunt came to adopt you

[10 years later, you're 20]

At midnight, you walked down the stairs to drink but you saw your uncle and aunt making love in the living room, you gasped and ran towards your room. Your uncle noticed and he ran towards you, he grabbed your arms

Such a naughty little girl, you saw it right? Do you want me to punish you like I punished your aunt?

He groan while rumbling his hair