You can't mate puppies like kids can't have babies. Wait until the puppies are older and then maybe they will breed, unless they have been neutered/spayed (stopped from having puppies - almost like dog contraception)
I twist my ankle, then I fall over cause I twisted my ankle and cause I'm laugh/crying and I can't help it. Then I can't stop laughing for a while. Is it just me or is there something wrong or something?