oh GOSH yeah this was really hard to think about.....there are a LOT of contenders huhuhu this will basically be a listicle but okay in an attempt to be brief i'll keep it to like, a few honorable mentions and then My Most Favorite (Probably; Most Favorite As Of Right Now; This Is Subject To Change)

hm (honorable mention) #1: not exactly to do with bmjn directly but yj's friends making a banner for one of their concerts and shouting out beomgyu on it has never failed to throw me in for a loop whenever i remember that it happened. like okay??? bg has his oomfs in-law's co-sign??? all right then.

hm #2: i am technically cheating by including two moments but it's of a similar theme so i'm running with it!!!! bg quite famously has a way with words and i love the moments where his penchant for sweetly devastating turns of phrase are aimed yeonjun's way. so my favorites are: 1) i'm on your side (from pre-debut specifically), and 2) come to me if you ever get tired. i will wait. i could write and defend dissertations on these two to be quite honest. just so loving and gentle and patient, things that bg has always been with yj. "i cannot carry it for you, but i can carry you," as tolkein said etc etc.

hm #3 bg comforting yj during their first seoul stop in 2022 while he did his ment. there's a bit of a noticeable theme going on here (and even with my fave moment it's present) HASHDASD but in truth i just Love seeing bg take care of yj. bg in general is someone who's Very concerned with reciprocity; he loves being babied and cherishes that kind of treatment, sure, but it's always been important for him to give that love back. he talks so much abt how yj takes care of him so well and so he really works hard to put in the same effort. i especially just appreciate how frequently these moments come now that they're both older and have settled into their relationship more; bmjn have always been a give-and-take kind of pair where they take turns at being the sturdy one, someone the other gets to lean on. yj, as the oldest hyung, feeling safe enough to be vulnerable around bg, to publicly lean on him and seek him out, speaks volumes to me of how much he trusts bg, how much they trust each other.

hm #4: the entirety of freeze era. i don't even think i could ever verbalize how much that era means to bmjnists if they weren't already there. like we were coming off of them barely acknowledging each other's existence, avoiding each other, keeping a space for god in between them if they happened to be next to each other in photos. and then???? freeze happened??? and yj was?? chasing after bg??? pulling on his pigtails and trying to get him to notice him again???? it felt like the comeback arc of a couple that just recently broke up i'm not even kidding. i called it his "jogging era"; prior to blue hour, it was almost always bg the one chasing yj, and now it was yj doing it.......important monumental life-changing stuff

AND NOW FOR THE FAVORITE!!!!

what else could it have been if not the april live this year? bg coming into yj's live, telling him "how could i leave you like this?" [paraphrasing] like my god i don't even know how any of us survived it. it was the pinnacle of care and tenderness. another occasion of yj feeling vulnerable and bg being there, cupped hands as gentle and prepared as ever to catch him. so SO good. altered the course of my existence. i still get misty-eyed whenever i think about it.