He laughs nervously and y'all start to watch the movie.
U r kinda snuggled next to him I guess y'all have a very comfortable relationship for only living as brother and sister for 2 months but we will explain later.
U happen to look down for a second noticing his huge boner I mean biggest thing u have ever seen.
U quickly look away.
Around ten minutes later he looks down and moves his hand very slowly over it.
U can't help but smirk.
The movies over so u go to the pantry because u didn't make any popcorn.
Taesu goes to his room.
Taesu: I'm gonna take a shower !
U: ok Nii-San
Taesu: sometimes I wish u would call me oppa.
Taesu: dongsang
U: yah it sounds like dingdong
He knows u don't like to be called that.
He chuckles and goes to his room.
U: Mianhae!
1 MINUTE LATER
U realize u left yep home upstairs so u walk upstairs to retrieve it.
To the left u hear heavy breathing and low muffled moans.
First thing that comes to ur mind, Is Taesu master bating?
AUTHORS NOTE: I know some people would do different things in this situate but ima just go with what I think is best for my story line.
U go to his door and peak in.
He's laying against his bed jerking off.
U can't help but stare it's literally big Asian cock.
It's at least 7 inches.
He starts to groan a little bit but u can't make out the name.
He then cums.
U wait a few minutes seeing that he has now put underwear on and walk in.
U: Whatchu doin?