Jaden and Greg were two average 20 year old college housemates who were longtime friends, constantly playing video games and goofing around together... or that was the case until Greg’s little sister Melissa moved in. Melissa was a notorious slut in high school who was constantly the center of attention from guys due to her giant dumptruck ass, but about a month ago she had failed her first nursing exam and lost her job and apartment until Greg invited her to live with them temporarily. Even though Jaden and her were constantly arguing about stuff like leaving the toilet seat up and not doing the dishes, even he couldn’t resist the hypnotizing call of her booty, and every night he masturbated thinking of what he would do to her phat butt if he had the chance.

Jaden had been experimenting with an old mystical technique that allowed him to ‘astral project’ and travel invisibly outside of his body, and was telling Greg all about it when Melissa walked by. Jaden’s draw dropped mid-sentence as his eyes drifted towards her bouncing cheeks, loving the quiet clap that echoed with every step. Greg looked at his friend annoyed, getting serious for a moment. “Please stop giving my sis such a hard time... I know she’s annoying you a lot, but she’s struggling after everything, right?”

He wanted to respect his friend’s wishes, but he still couldn’t take his mind off of her gorgeous ass, so Jaden figured he could kill two birds with one stone: he could practice his astral projection, and use it to silently get a nice long peek at her butt. He laid down on his bed and began to focus his spirit, and soon he felt his ethereal body leave his physical vessel. He stood up and began flying around the place before heading towards Greg’s room, where Melissa was supposed to be sleeping on a mattress on the floor. Instead, when he entered their room he was shocked by what he saw. Greg was raw-dogging his sister Melissa from behind, his balls slapping against her callipygian cheeks! While Jaden knew it was disgusting, watching his best friend incestuously rail his own sister a few yards from where he slept, he couldn’t deny that he was getting turned on by watching Melissa and her fat ass getting fucked as she choked back moans of pleasure.

Jaden watched intensely, repulsed by his curiosity but unable to look away. Plus, he was surprised by just how big Greg’s monster dick was, thick and nearly a foot long that put his own member to shame. Reaching down, he began jerking his cosmic cock off until he realized that Melissa seemed to be almost looking at him dead in the eyes. Figuring it was just his mind playing tricks since there was no way somebody without experience in projection could see him, he brought himself to orgasm just as the brother and sister came themselves. Watching Melissa fall face-first onto the bed, he initially thought she was taking a breather until he saw a spectral body emerge from her form.

“You’re not the only one who can astral project, dumbass!” Melissa’s soul said, tackling Jaden before he had a chance to work out what was going on. “And now you’re watching me have sex like a gross perv.”

“I’m the pervert!?” Jaden retorted. “You’re the one fucking your own brother!”

“He offered to let me stay with him rent-free if I promised to have sex with him every night.” Melissa replied. “Besides, why should anybody be deprived of an ass like mine? And speaking of...” Grabbing Jaden’s form she threw him across the room until it automatically filled the nearest vessel - Melissa’s butt-naked body with her brother’s cum still leaking out of her vagina. His eyes snapped open, and realizing what had happened he began to protest before he felt his best friend’s already erect, large cock pressing between his heavy cheeks for round two. “Enjoy your dropout life while I live it up in your successful body, idiot!” said Melissa's astral projection before she flew off to enter his Jaden's old body.

As gross as it was to be fucked by a guy, especially now that the guy was this body’s brother, he had to admit it did feel really good. Figuring he would just give this body a little test run before breaking the news, he was so caught up in the pleasure of being spanked, teased and fucked on every surface by Greg’s massive penis that he lost track of time, and after hours of mind-blowing sex the two passed out in each other’s arms, Greg’s big cock still inside of Jaden’s pussy.

The next morning Jaden awoke groggy, his entire body (especially his phat bubble butt) aching and sore from the marathon sex session the night before. “Holy fuck... did I seriously just... Am I really... Oh god...” He whispered to himself in disgust. Sliding out from underneath Greg's arm he waddled up to the bedroom door. He took a moment to properly check his new body out in the mirror: his long hair, his soft features, and the most eye-catching of all, his gigantic bubble butt. He was worried it would be his forever, since there was no way Melissa would change them back now. “With a booty like this, though... who can even blame Greg?” As he was about to head into the kitchen he heard Greg complain about his morning wood, and immediately he started feeling hot and bothered as he felt a tingling between his thighs. Turning around Jaden jumped back onto the bed and took it in his hands, loving how big and thick it looked (especially in his small hands) and readying himself to insert it back into his salivating pussy. “Alright big bro, I’ll help with your ‘big problem’. But remember, it’s still our little secret, right?”