KYN MY LOVE HIIII :D
amazing question for which i . do not have a straight answer i actually love Both omega hyunjin/jisung AND alpha hyunjin/jisung ... the one im writing now is omega hyunjin and alpha jisung though :]

when it comes to alpha hyunjin i really love writing him as Teasing, i think he loves to see jisung's reactions, almost like a predator playing with his food before biting . omega hyunjin however is very Blushy and Easily flustered... but he'd also feel neglected if the attention weren't on him so.

alpha jisung i think is a bit cocky but ultimately very soft and gentle, he'll talk big about having a big knot and fucking rough but in the end when he's with someone he loves (ie hyunjin) he's always thinking about their pleasure and how else to be accommodating (can you tell i like service top jisung..) OMEGA JISUNG ON THE OTHER HAND.... well. whiniest boy you will ever meet. big wet cow eyes. The Works. textbook omega