Chuck has been putting on some sympathy weight this pregnancy, seen here where his neck billows out of his collar. We haven't been feeding him any more than usual, maybe a few more treats here and there, but he runs a lot less when we let him off leash at the park. Could be that he's getting older, could be that he's getting lazier, but I'm betting it's because he's worn out from having to live in the same house as Coco.