That's adorable. What breed is Wilbur? I love pigs and have Guinea Hogs.
One of the black Langshan boys was picked on by the other roos so he has moved into the pig pen and is friends with their large sow. He was right there supervising when she gave birth to her piglets last week.
You have to be careful with pigs and chickens because sometimes the pigs will eat them. I would especially be wary of a sow, who may be protective and/or ravenous from giving birth or nursing a litter.