The Doctor silently stands still and wait for Amy's reaction. He was definitely scared. After all, in the past, Amy had done some pretty bad things to people who so much as insulted the Scottish, but they never said that she was fat. This might have been the Doctor's imagination, though, but he thought Amy looked even more intimidating now than she ever did skinny.
As the Doctor waited for Amy to explode at him, Amy rubbed her swollen stomach and closed her mouth. Then, her face formed into the biggest smile he had ever seen on her in his life. She rubbed her belly even more as she prepared to speak.
"Thank you, Doctor!" Amy said, her hands running up and down her body. She looked down at her stomach, which made her cran her neck to see past her swollen breasts. "I've been hoping you would say something about it for the last month now. Looks like i finally got fat enough to break down your rational side that didn't want to insult people. Nice job, though, not saying anything for so long. Most blokes don't last a week before saying something."
As Amy talked, the Doctor grew more and more confused by her words.
"Um, I'm not sure i understand,"the Doctor said. "Haven't you been gaining weight because of the depression?"
This made Amy laugh so hard most of her body jiggled.
"What?" Amy laughed. "The depression didn't make me fat. I did this to myself."
Now she could tell that the Doctor was more confused than ever.
"You thought this was happening to me without me noticing?" Amy asked. "Very unlikely. I'm up to 180 pounds. Well, that's what it said last week. I uh, can't exactly see the scale anymore."
The Doctor could hear actual pride in her voice now.
"You mean," the Doctor began. "That you've been doing this to yourself on purpose?"
"Now you get it," Amy said. She smacked her ass, and laughed as it took a really long time to stop jiggling. "It's a fetish that I've had for a couple of years now, but never gave in to because of society's definition of beautiful. Cause, see, in my mind..." She grabbed her swollen stomach and shook it, causing a jiggling mess. "...This is beautiful."
"Huh," the Doctor said. "Admittedly, when i imagined this conversation in my head, you were having a completely different reaction to being called fat."
"That's what happens when you call a willing fat girl fat," Amy said. "She likes it and thanks you for finally using that word. Still, though, nice job waiting so long finally using it. You would be liked by the fat women of Britain. But as you actually did use the word, you're all right with me, too. I mean, i have a really nice pear shape." Her hand went to her butt. "Just look at the size of my bum!" Amy said excitedly.
The Doctor was getting a bit of an understanding of what Amy was talking about, but his mind was still plagued with questions; How long had she felt like this? When did she decide it was time to get fat? How big did she plan to get?
"There is one thing, though, Doctor," Amy said, rubbing her belly and slapping her fat ass at the same time.