on the left we see big bro justin, whos got the smarts, looks, and the sarcasm
on the right we see lil bro johnny, whos got some smarts too, is a lot more quiet and timid than his bro, and is questioning his sexuality. he also hates being compared to justin
justin, of course, isn't aware of that, and continues on being a regular brother to johnny
johnny however, is kinda distant, but he still looks up to and admires his brother a lot

all in all, they have a pretty good and healthy relationship, of course, they fight sometimes, but it's never anything big and they always make up afterwards