```
With a loud 'bang,' the door was thrust open, and Xu Xiaoya dashed in from outside. Zhou Qing was startled while Xu Xiaowan, lying on his lap, remained exceptionally calm.
Seeing the state of the two sisters, Zhou Qing immediately realized they must have premeditated this, hence their timely appearance. With this thought in mind, Zhou Qing gave Xu Xiaowan's bottom a hard smack, making her whimper in pain.
Xu Xiaoya quickly shut the door and rushed over to Zhou Qing, "Qing Ge, this wasn't just my sister's idea, it was mine too. You are our savior, and you have taken such great care of us. We both are willing to give everything for you."
As she spoke, Xu Xiaoya began to undress, and soon, she stood naked in front of Zhou Qing, her eyes hazy with desire and her cheeks flushed with arousal.
