Three months later the puppies had been born and finally weaned and sold. Colin had gotten $800 each for Rob's german shepherd pups and $1000 each for Bryan's rottweiler pups.
The two bitches were still sleeping on their dog bed as Colin quietly booted up his machine, changed their species and sex and hit enter before turning to watch his best friends turn back.
Bryan began to change first as his body began to grow. Nipples disappeared as his manhood began to grow back out of his canine vagina. His face began to pull back in as his legs lengthened and fingers grew back. Soon a young man of 5' 5" lay with wide shoulders, his muscles had increased in mass and now had tight pecs and bulging biceps, his new 6 pack had light brown hairs around his navel. A wispy goatee now sat on Bryan's chin as he remained asleep.
Rob's body then began to stretch as he turned from dog to man. Colin was a little worried as Rob too was also beginning to look like he was older than when he had changed three months earlier. He wasn't much taller, only 5' 10", but he had sculpted muscle now, and a bigger piece of meat. The biggest difference was the amount of hair left on his body, he now had thick dark brown body hair from his toes, up his legs, across his ass and small of his back. Around front his hair went from his crotch all the up to his lip non stop before spreading into a thin beard.
Looking back at the computer he wondered what went wrong and soon found the boys ages had changed. Bryan was now exactly 15.86 years old, while Rob was 16.28. Looking deeper into the settings Colin finally figured out why they were older. He had failed to set an age for them to turn back into and the three months they were dogs, they had aged as dogs, and when they turned back, they turned into the age equivalent of the dogs they were.
Colin was just about to edit their ages back as the two laying next to each other began to wake.