Brad came running over to my house and knocked on the door. There stood a hansom boy but when he dropped his pants in my room he was back to the micro cock that he had been yesterday.
Does this mean I have to be fucked by you every day to keep my cock?
I don't know, I said knowing full well what was required.
Here let me do this so you can go to school and not be embarrassed. I dropped my pants and shoved my cock deep in his ass and rested there for at least 10 minutes.
Thrusting and pumping I filled his ass with cum and expanded his cock.
There looks good now. But damn this cock of mine sure aches I wish I could have it be shorter. My fucking of you doesn't seem to shrink my cock.
I know it seems thicker than it was yesterday.
Really? Oh god no I don't want it that big. I knew that it was thicker and would grow thicker every time I fucked him.
If I keep fucking you in a week I am going to break apart your pelvis and then it is going to have to heal.
It didn't take a week. In a few days his pelvis fractured and he was laying in my bed with a huge dildo up his ass supporting the bones so they would heal but I kept fucking him daily growing thicker and thicker.
After another week of fucking him I stopped and let him heal completely. His ass held a dildo the size of a telephone pole letting his pelvis heel around it. His hips got rounded as they healed and I figured I would put in another step for him.
Look Brad I can't keep fucking you. Your hips will be twice as big as you are tall. As it is you are going to waddle trying to manage this ass. The way they grew together his hips were slung back and his abdomen was stretched out in front of him. He still had that wonderful 6 pack but it was in an arch reaching down to his invisible cock.
When he went back to school everyone was astonished by him. Well everyone but his best friend Charles.
I made him crave Brad and they soon were intimate. These two muscle boys making out was incredible. Brad's ass accepted Charles' cock well but his seed created a plug holding his sperm in place just like an animal's sperm created a plug.
This impregnated Brad and soon those abs were stretching out with babies. Many, many babies. Ready to come out that enlarged ass that he now had.