Responses
Hmmnnn well.. its not reallya threesome perse. And the story is quite complicated.. and with curses.
Basically the family is curse to love each other, thus the character's relationships.
But.. i guess it worth the try to read a none cringe "threesome"
http://www.mangago.zone/read-manga/nibiiro_no_hana_gou/tr/974801/page/
YAOI THAT HAS GOOD 3SOME PLEASE WHGDHWHDHE i keep stumbling upon the ones that give me sm 2nd hand embarassments