I see it could be two ways. One: the big dog is very kind and left the big bed for the pup. Two: the pup went on the big bed and left the small bed for the big dog. In that case, if I was the big dog, I would just lay on the small dog (or around it).
Another Pinner says: "This site could be very dangerous! It has a million DIY projects! Pin now read later.and don't blame me if you become addicted to this one! This is the mother load of DIY!" Great something else I can get addicted to