--------------- ✧･ﾟ
･ﾟ✧ ---------------
Two types of relationship between brothers:
Incestuous - Brothers related by blood ➸ Twincest, Brother x Brother, Half-brothers.
Not Incestuous - Brothers not related by blood ➸ Brother x Adopted Brother, Step-brothers.
➤ I created a separate list for other family affairs (father x son, uncle x nephew, cousins etc.):
http://www.mangago.me/home/mangalist/97514/ 
