i would looooooooove to write big bad wolf jeong who puts his cute ferret in his place. i've actually thought about the nuances of how i'd write them from that angle quite a bit because i'm very partial to jeonghyeon being submissive just like. in his general daily life with seungeon even if d/s isn't explicitly involved. service dog you know. so at least for me i think the ways i'd come at it would probably be

a) jeonghyeon would neeeeed to have a conversation about it first because i think he'd be nervous about being mean to seungeon lmao. but once he hears seungeon enthusiastically tell him he wants it he'd be willing to do it and would really enjoy playing in that space

b) alternatively seungeon actively egging jeonghyeon on to get a reaction out of him with this in mind as his goal. like their annoying each other thing where seungeon bothers jeonghyeon to the point of frustration because they're obsessed with each other and the only thing jeonghyeon can think to do is push him down and he realizes that's what seungeon's after and like. seungeon annoying (affectionate) but also how can he not give seungeon what he's asking for?

so like. still fundamentally service dog things i think but different than the way i've written them