Love hate relationship!!

So I have a LOVE/HATE relationship with potty training the boys. I NEVER thought that I would be doing this already and truthfully only Justin is ready. For about a month now Justin has been sitting on the potty and going. Not only will he go, he often tells me when he has to go and will go several times a day. Now while all of this is great and one step closer to buying less and less diapers....it's causing lots of frustration for Ryan and myself. Ryan gets easily frustrated when he can't or isn't doing something that Justin is and for now it's going on the potty. He too has gone on the potty but is not going regularly and he screams that he wants to go and then screams that he's done....it's all really too much!! You honestly can't imagine what bathroom time is like in our house unless you've seen it. Whenever anyone goes to the bathroom, Justin decides that he too needs to go (and usually does) and then Ryan decides that he needs to go too (and usually doesn't) , mind you neither of them is helping with pulling pants down or anything of the sort and Ryan usually screams for the whole process. This is really one of the few things I hate about having twins, but I'm sure I'll love it if we're potty trained at least for the most part, sooner rather than later and we're all done with diapers!!