Man... I hear what you're saying about other variations of adult trio ships but... Hisoka just.... Idk he seems perfect for illumi and idk if anything or anyone can top him.
Anyone : *breathes near illumi *
Me : okay but not only did Hisoka do it first, he did it better
Me : okay but not only did Hisoka do it first, he did it better
Also the fact that Hisoka was probably Illumi's first everything and subsequently taught illumi how to love and be loved.... You can't take someone who's had nothing and suddenly give them everything and expect them to not gravitate toward that specific person.
Like if illumi has his sudden revelation around what love actually is and realizes the feelings he has toward his family isn't actually love, his next point of ref is literally Hisoka. Like pray they don't break up or anything bc illumi would be the one one hurt most.