Getting two pups at the same time is generally a bad idea, especially from the same litter. They will already have a strong bond towards each other and you will have to work hard to find yourself a place in their ‘mini pack’. Also they will have heightened confidence from each other and be far more likely to ignore you, especially when it comes to recall.
Now I am not saying that multi dog households can’t be fantastic and yes it is great for a dog to have a companion. The way to go is to acquire one puppy see picking the perfect puppy train it up to a level you are happy with then get another. If you do have to get two puppies at once leave at least a few weeks and get puppies from different litters.
Male/ female combination: This is probably the best option if you have decided to get two young dogs, it will minimise fighting but you must get them castrated/ spayed quickly.
Female / female or Male / male
This is generally a bad idea. They will be hitting puberty and the same time and taking their moods out on each other.
With hormones raging in fighting and jealousy is likely. Here you need to get one of the pup’s castrated or spayed but it is often better to leave the other one entire so you can have a clear hierarchy within the puppies. You need to be aware who is ‘top dog’ between them and castrate/ spay the lower ranked dog.
TOP TIP If you get a puppy and train it as it grows then obtain a second the sex of dog generally doesn’t matter as the existing dog will generally be more secure about its position and hormones will have subsided.