Flirting With My Bestfriend's Sister {Nemi} {Unedited}

His little sister. His bestfriend. One bet. Could it ruin their friendship? Is she worth it? Or will he be able to fix it all with no secrets to spill? {After chapter 24 the chapters are private. I didn't want people from my YT acc to spoil anything, but the bad thing is I can't undo it now. You have to fan if you want to read the rest.}