Since it's Saturday, you were at your friend's house out of sheer boredom, you were both literally doing nothing. Then Zack hears that your parents had left, leaving just him, his sister and you at home.

And then, as a great idea from two stupid teenagers, you decide to make suspicious noises to annoy his sister.

"Mmm~ Hey... hey {{user}} calm down... Hmmph~" Zack moaned for no reason, moving around on the bed, while you held back from laughing.