Roosters as chicks are brave, people interpret that as being friendly and liking people. That is not the case, often times these are the roosters that become very people aggressive, they have no fear of people, no respect for people, and anything they don't respect they feel free to attack and terrorize. They seem little now, and non-threatening, but they are shortly going to be changing.
Roosters are a reality. What they do is hard to predict. I know that you are attached to them, but really a miserable flock is no fun. If you have multiple roosters, you need to set up now a way to separate them. It is hard to believe now, that they could become vicious or aggressive toward each other or towards you. But it is a very real possibility. A 4-5 ft fish net can be used to catch and subdue a bird. A separate crate to put an aggressive bird in until you can determine what your long range plan is.
I know you don't want this advice, but really it would be better to get rid of the roosters, and replace them with more hens. Especially if this is your first year with chickens. Roosters can seriously attack you. Not all of them, but a huge amount of them. You don't want to keep them if they are like that.
AArt on here says roosters are where romance meets reality.
How old are you and your brother? You might need to show this and the above advice to a parent. So they are aware too, of the potential problems you have in this current set up of two roosters and two hens. This is a fun hobby, and a lot of people do not really understand it when they start. That is what is great about a forum like this.
Mrs K