"Rachel?!?"
"A-Andrew?!? Wait, this isn't what it looks like!"
Andrew had clocked out from work faster than usual. He was looking forward to doing something fun with his girlfriend with the extra spare time, but upon arriving home, he instead ended up walking in on Rachel getting railed from behind by some fat old sleazeball.
The man didn't look like her type at all, and Andrew's first conclusion was that Rachel was being raped.
"Get off my girlfriend, asshole!!!" Andrew shouted at the old man. He then clenched his fist and started marching towards him with the intention of punching the guy as hard as he could.
"Andrew, no! Don't!" Rachel yelled at him, but his mind was made up.
The old man glanced his way briefly.
"This has nothing to do with you, kid. Just two grown up adults doing business. You should just enjoy the show," he said, and returned his attention to Rachel's backside.
Andrew noticed he was no longer able to get closer. The soles of his shoes felt like they were glued to the floor. But what disturbed him more was the fact that he now found himself unable to stop staring at his girlfriend getting fucked by this asshole. And for some reason, it was suddenly turning him on immensely, making his cock rock hard.
"W-what did you do to him?" Rachel asked the man.
"Just tweaked his sexuality a bit. Watching other people fuck is very enjoyable for him now."
"No! That wasn't part of our deal! Don't do anything to my boyfriend, please!"
"I only did it because the fucker was gonna try smashing my nose in. I specifically asked for privacy, didn't I? You can only blame yourself for this."
"P-please! Just take what you asked for and leave!" Rachel pleaded.
Andrew was trying hard not show how unbearably aroused he felt watching Rachel getting pounded. He did not want to give this mysterious man the satisfaction of seeing his cursed words become reality. But there was no denying that they already had. Andrew was so turned on that he felt like he could ejaculate in his pants any second.
"Alright, then. Let's do it, my sweet Rachel... Make me young and healthy again."
If it weren't for the strange things that Andrew had already experienced himself just now, he might have thought he was hallunicating as he watched the scene that followed.
Rachel began to moan. It started off as a soft and sexy moan, but as it went on and on, the pitch shifted lower, and the sound became deeper and raspier. At the same time, Rachel's body fattened up. A squeaky fart escaped from the deepening cavern between her chunky cheeks.
"Fuuuck!" Rachel yelled as her body continued to become heavier. Her voice now sounded like it belonged to a 45 year old chain smoking and whiskey drinking fat cougar lady, and her face was starting to match that impression as well.
Rachel's eyes widened with terror as she noticed her massive weight gain.
"H-hey, stop this!!! Something's wrong!!! I wasn't supposed to get fat!!!"
"Tsk tsk, Rachel. I thought you'd be a little smarter. When I said I wanted your health and youth, what did you think I meant? Did you think that was just some idiotic figure of speech for wanting to fuck you?"
"I..."
"I can't use my powers directly on myself. To get rid of my unwanted traits, I have to pass them on to someone else. That's why I need silly, greedy girls like you, Rachel. You're now a vessel for my old age, obesity and alcoholism, and I can start over as a handsome lad back in his twenties."
"A-Andrew!!! I'm sorry! He tricked me! He gave me a hundred thousand dollars! I did what he asked because I thought he only wanted to sleep with me once! Kick his ass, Andrew! Make him change us back to normal! A-Andrew?!?"
"Your boyfriend won't help you anymore. He loves watching you get fucked way too much to intervene", the man explained.
Though Andrew wanted to fight back, he knew the man's words were true. Even though he was able to move move normally again, he was too mesmerized watching his girlfriend getting pounded from behind by this man, even if she was now an obese old tart. Andrew could not find the willpower to separate the man from her by force. And even if he tried, the man was now a young muscular hunk and could overpower Andrew easily.
"Andrew! Snap out of it!!!", Rachel screamed.
"Save your breath, cunt. He's not gonna do anything but watch. Why would he? It's not like you two are even in a relationship anymore."
"W-what?" Rachel stuttered.
"You heard me. Look at him. He's just a prematurely ejaculating loser now. Watching fat old whores like you getting dick feels better to him than actual sex."
As the man spoke those words, they became reality. Andrew groaned as his balls emptied themselves completely into his boxers. He collapsed to his knees, the wet and sticky mess running down his thighs.
"N-no! Please don't do this! I love him!" Rachel pleaded.
"That's impossible. You only love men that can fuck you properly. Andrew has never been able to last inside you for more than two thrusts. Most of the time he blows his load just from seeing you in your underwear. He's just your pervy roommate that you tease every once in a while if you have nothing better to do. You love all the male attention you can get, even if it's from guys you despise."
Rachel's love for Andrew faded away from her eyes, and her expression changed to one of amusement.
"Hehe... You're right. Look, I think the little perv creamed himself again," Rachel said, looking at the wet stain on Andrew's crotch.
Andrew knew something was wrong, that something important had been taken away from him. But he couldn't tell what it was.
"S-sorry, Rachel!!! You two make such a sexy pair, it was like watching the best porn I've ever seen," Andrew said.
"Looks like you've adjusted to your new personalities well", the man said. He then accelerated his pace and with a few powerful thrusts, finished by shooting a thick, massive load inside Rachel's stretched out pussy.
"Mmmm!", Rachel moaned in her husky voice. The new Rachel loved it when guys came inside her.
"Alright then, enjoy your money, Rachel. Try not to drink it all away in one year."
