How to introduce a new Pug puppy to my current Pug puppy?

Mistake getting another puppy, your first puppy is not trained, the bladder is just grown, adding a new puppy will undo all the work you did with potty training. The stress of new schedules will mess up both puppies. It is only 1 hour for each month of age with puppies, so a 2 month old puppy can only be alone/hold its potty for 2 hours at the most. No one will be there for either puppy, this is a terrible thing to do to either of these puppies. You can't train a puppy in 3 days. I hope this question is one of those joke questions I just don't understand. I hope your question is just a bad joke. This would be terrible for both puppies, I hope it is just a joke question. Please don't get another puppy, please don't be that cruel. I take my older dogs outside and then introduce the new puppy outside so if anyone has to pee they do it outside. It takes older dogs a while to warm up to new puppies, usually a few months. The baby teeth come out between 4 and 6-months-old and the puppy gets a little bigger then. While I expect them to work some things out on their own, I step in when anyone does a behavior I don't allow. Be fair, if the older dog starts it, correct that, if the younger one starts it, correct that. I use the command "shame" so I point at the one who started it, snap my fingers, and use a command "shame" when they behave, I praise them. I use Charlee Bears for potty training, so when the new puppy goes potty, she gets a treat, and so do the other dogs. The puppy learns to share treats and that she is not more important than the other dogs. I do everything as a group. Potty, leashes, training, walks, play time, combing hair, it is all done as a group. You can give an older dog extra attention while you are waiting for a puppy to go potty. While I expect them to work some things out, I correct any behavior I don't allow, the second it starts, they are each others pack now, but it is my job to step in and correct any behaviors I don't allow. It just takes time but you get out of them what you put into them, so hang in there.