
Accidental of course after all dogs don't mate bitches they live with :( do they ? Bet they aren't free to a good home either !
My first BC was the result of a mating between a ten year old bitch who had never had puppies despite being mated to several different dogs in her younger days & hadn't had a season for three years & a 5 1/2 month old BC puppy dog ! who had climbed into her kennel & back to mate her, at least they were the same breed & it was 30 + years ago