An evil plot!

Victor Von Doom observed the monitor as his nanobot served it's purpose, injecting Susan Storm with a certain formula he had developed. It was quite ingenious, if he did say so himself. The formula caused the victim to gain weight but slowly, so as not to alarm the victim. Every piece of food that they ate would be turned into fat and show up on the body. Once the victim had reached over two hundred pounds they would start to sweat, sweat which would of which would infect any who it touched.

Doom's plot had originated when he had last had them at his castle and Susan had refused to partake from his table, citing a diet. Whether mere levity or truth, it wouldn't matter as Susan would soon be fat enough to make a mutant like Blob look anorexic.

"It's only a matter of time and I am a patient man," Doom's voice boomed.

Susan flinched as she felt a mosquito bite her, the Invisible Woman swiftly slapping the offending insect.

She then started the movie she had picked out for her and Reed's "No Lab Work" time, something Susan had had to implement after Reed spent three whole days sequestered in his lab.

Reed entered the living room then, carrying an immense bowl of popcorn laden with butter. Smiling at her husband, they snuggled together as the movie started, Susan taking a bite of the snack and enjoying the salt and butter sliding down her throat.