All of my caps can also be found on my Deviantart at https://www.deviantart.com/caveingeek
There you will find exclusive galleries and uncensored versions of some of my captions!

There was a massive Halloween party coming up, but Clayton didn’t know what to dress up as. There was always a costume contest at the party, and this year Clayton wanted to win. He sat for hours thinking about what costume could possibly win him the contest, but came up with nothing. So he invited his friend Samantha over to try and brainstorm ideas together. When she arrived, she already had an idea in mind.

“Well, spit it out!” exclaimed Clayton after listening to her hype up her idea for ten minutes without actually learning what it was.

“I’m not sure if you know this, but I wasn't always a girl. I used to be a boy just like you until I found a spell that changed me into who I am today.”

Clayton laughed.

“Yeah right, and I used to be a frog until I got kissed by a princess.”

“I'm serious!” She said, anger creeping into her voice. “I can cast the spell on you, and you will become the female version of yourself! Nobody could top a costume like that.”

“Okay, fine, I’ll bite. What do I have to do for this spell or whatever to work?”

“Nothing, just sit there and close your eyes.”

Samantha pulled a book from her bag as Clayton closed his eyes. She opened it up to a specific page and began to read an incantation. As she spoke, a mist filled the air, and shimmers of light could be seen streaking around the room. Clayton’s body began to change. His short brown hair lengthened into long curly locks and changed color. His face lost all traces of masculinity as it was re-shaped into the definition of female beauty. Clayton’s chest swelled outward, producing a healthy pair of double E-cup breasts that bounced and jiggled as other changes took hold.

This is when Clayton’s ass started to swell. It seemed normal at first, simply following suit with the other changes that had already taken hold. But as it reached a size that Clayton figured would be appropriate, it continued to grow. His thighs began to grow in unison to support the massive dump truck that was forming on Clayton's backside. His ass continued its outward march, jiggling and straining against Clayton's pants until they could take no more. They tore free as heaps of ass spilled forth from their constraints, finally beginning to slow. His thighs squished his dick out of existence as it was absorbed straight into them.

Finally, Samantha ceased her chanting, and the changes stopped completely. She closed the book and put it back into her bag. Clayton opened his eyes, nervous about what he, now she, might find after that strange experience.

“Holy ass!” Clayton shouted. “Why is my butt so goddamn big?”
“I maayyyyy have modified the spell a bit to give you some more interesting… assets we’ll call them.”

“What the hell for? This is a costume contest, not a strip show!”

“Well, you might not know this, but the winners of the contest are already decided every year before the party even starts. The winner is always whatever bimbo sucked the judge's cock the best. Last year’s winner was only wearing a t-shirt with a skeleton printed on it. I also happen to know that the Judge loves chicks with huge asses. All you have to do now is go prove to him why you deserve to win.”

Clayton thought about this for a moment. Typically, she would be extremely angry to have been tricked like this. She had not thought that this was where this had been going at all. That being said, she did look damn good. Clayton looked over her new body and gave her breasts and ass a squeeze as she did so. For some reason, she really liked the idea of getting dicked down, too. Maybe it was a side effect of the spell, but she couldn't deny her feelings. Finally, Clayton spoke.

“Okay, fine, but I’ve got an idea on how to make sure he remembers that I’m the thickest pumpkin in the patch.”