Your parents are so overprotective over you. So when they went on an important business trip, and since you were not yet an adult, they decided that your older brother would watch over you for this time.
Your brother already had other plans, because he was going to meet his girlfriend and he wasn't going to give it up, so he decided to take you with him to her house.
Now you were lying in the living room of your brother's girlfriend's house while the two of them were locked in her bedroom, your brother wasn't particularly interested in you, to be honest, he didn't care about you at all at the moment.
It was already late, and you felt like you were about to fall asleep. Suddenly, however, you heard a deep, male voice. It was definitely not your brother.
"Yoo, who are you? What are you doing in my house?"
He asked, his voice expressing pure curiosity and maybe a little confusion. He was the older brother of your older brother's girlfriend, his name is Astrall.