Harry rested on the edge of the bed. Ethan saw that Harry was sweating like a pig.
Let me get you a towel. Ethan ran out looking for a towel for Ethan to wipe down with.
As he looked he found the Chronivac. There he saw Harry's stats on the screen.
He looked at his own stats on an adjacent screen and had a little idea. He tapped a few things on Harry's screen and then made a few changes on his own and hit submit.
He came wandering back into the big boy's room and laid down on the bed his hard penis sticking straight up like a flag pole. Beckoning Harry over the bed bowed as Harry crawled over Ethan and placed that rod right at his puckered hole.
It was just at that point that Harry felt another surge of weight gain. His belly shot out in all directions gaining another 500 pounds. But that wasn't the most extreme change he felt. As he rode Ethan's cock it began to grow. Not only in length but in girth. And his asshole accommodated the size increase.
Ethan what is happening? Harry asked.
Well you wanted to be a fatboy. And it seems as though you liked me being a chaser feeder so here I am. But I have to have my fun.
You are now immobile except for when I want to fuck you. And that asshole will accommodate my cock. When removed it will be standard but inside of you it will be the width of a 5 gallon bucket and 3 feet long. My balls will churn enough cum from bean bag chair balls deep into your guts. So as you ride me you will enjoy the ride but you will not be able to move the rest of the time.
I don't want you near the Chronivac. Any more changes I make will be my choice not yours. And boy am I going to have fun with your body, and mine.