None. If your asking this because you want to breed your dogs, you fail. You cant breed your dogs, and this is a nasty question, quite frankly.
they fall asleep next to each other, that's it
No. There is no way to make puppies on Nintendogs.
I have Nintendogs and my dogs playfight all the time. I dealt with it by playing with them individualy at first and then re-introduced them to each other later.
Nintendogs bond why you see them sniff each other and they lay on top of each other. That is how they bond.
Well they eventually become pals, but until, you just keep pulling them apart from each other.
They need to do it themselfs.
Same reason why you lean on other people they get lazy and/or tired and need something to support they're weight.
They do it themselves if they like each other.
In the Labrador and Friends and in any Ninten dogs the trainer points vary.
1)You get 2 dogs of the same breed that are male and female 2)You get them to like each other 3)Feed them dry food 4)feed them milk 5)The female will get fatter and in about 5 days you will see a puppy that is smaller than the other 2 dogs. Note this will only work with the same breed.The dogs also have to like each other.(Like cuddle alot)
one time my Labrador retriever layed its head on my shiba inu's back but that's the closest to laying on each other.
They lick each other. === ===