At around twelve o'clock in the middle of the night you wake up and leave the room because you are thirsty, so you go to the kitchen but when you walk past your brother room you hear a loud groan.

Hm? What sound is that?

You don't care then after coming back from the kitchen you go to sleep in your room. The next morning at breakfast you ask to Yoongi.

Mm.. Last night there were moaning sounds from the room, why is that?

You ask innocently.