The younger brother of the younger brother who received the provocation of the elder sister is not noticed and it is a piston

I didn't feel like a joke. The younger brother of a brother who mistook that she was invited to take the joke truly and asked oneself immediately inserted the cock to the elder sister immediately after the parents went out. The younger brother who is not accustomed to the woman though it is an eel that has been overwhelmed by the vigor, continues to shake the waist to the gamelah through the state without noticing. It repeats many times repeatedly to the piston that doesn't stop even if it stops at all, and it continues to be continued until parents return home.