Ok so for the video, the premise would be that you were a normal chubby girl 24 hours ago but you somehow got a strange virus that makes people grow enormous permanently! Now your a helpless blob weighing in the thousands of pounds, with no hope of ever moving again, and your talking to your partner about how humiliated and helpless you feel, staring down a life of complete immobility, only able to wiggle your fingers and toes. Your partner, the viewer, would want to help anyway they can, so you would have to talk to them about your new caretaking requirements. You can barely turn your head or flap your hands, so you would need to be hand fed, they would need to clean your deep rolls for you, comb your hair, ect. You can't even reach your sensitive nipples anymore, let alone your buried clit, so you are completely sexually dependent now. And worst of all, your partner would need to help you relieve yourself, since there is no way your two ton ass is getting to a toilet. It's all so humiliating and scary, your legs and arms are spread apart permanently like your tied up in bondage for the rest of your life, but your partner agrees to take care of you, no matter how embarrassing or difficult it is, they want to help you face your new life as a blob.