As Jamie cries over his now obese form, Timmy laughs.
"I can't believe you thought that would actually work!" He chuckled.
Meanwhile, his stomach rumbles. "Perfect timing." he grins.
You watch in horror as your brother begins to grow, using your loss to fuel his latest, and possibly biggest, growth spurt. "I got enough cum from you to keep me growing on my own bro. Don't you worry." he winks. "And when it's all out of my system, I know just the poor sap to drain next..." He averts his mischievous eyes to a picture of your old, now muscular friend as he begins flexing, preparing for his further assention into the perfect man. Timmy groans in both pain and pleasure, his stomach grumbling loudly as the changes begin.