Absolutely beautiful, BSH are known to be the cuddly teddies of this world, reminds me of my British Shorthair girls when they were both young. who I absolutely adore still chunky, may your kittens remain very healthy and happy for the rest of their lives. The most beautiful animals in the world. May even just be the camera angle or body composition. Can be a variety of factors. You can weigh the kittens to see how they are developing.