One of my early set of guests were obese, but the woman's picture was taken in a way, where it wasn't detectable. I usually check the video footage very quickly just to make sure who arrived, when they arrived, and so on and I was surprised to see two very large individuals, probably 350 pounds each. Nothing against them, but as with the OP, I was concerned for my furniture, especially the bed and the kitchen chairs, not to mention the toilets.
Of course they were very sweet people and it turned out great. I took it as a learning tool to remind myself that these things are going to happen and going forward, any new furniture I purchase needs to be sturdy.