Will and Lydia always desired a pig, and one day Will astonished Lydia with three piglets. The piglets took Gem, their senior dog, by surprise as well. They claim that Gem has always longed for puppies, so he took the three pigs under his wing. He grew attached to Ted, the “runt” of the three.
Even though the three pigs have doubled in size compared to Gem, he still looks out for them and cares for them as if they are his own pack. Even when the three pigs misbehave (which they often do when they plot to escape their pens), Gem keeps a vigilant eye on them while allowing them to engage in mischief!
Rewritten Source: https://www.dogheirs.com/farm-dog-surprised-his-pig-puppies-have-grown-so-big/