I've seen novels that have grown out of one story in a collection. But it hasn't occurred to me to take any of those stories and build on them. They seem very finished for me, so I don't feel like going back and dredging them up.
“The fact is that we like each other very much, and we of course see each other on stage all the time, but this means more time to spend together, and that's great. We couldn't be happier.”