Mike held his mother's panties in his hands. He was completely covered in cum, especially his hands, and Mike suddenly became concerned that getting his cum on his mother's panties may have a effect on the swap magic, so he dropped them to his side.
He carefully reached over to the side of his bed and grabbed his "cum rag", a rag he used to clean himself up after a typical jerk of session. He had always thought that the rag was too big for his normal loads, but he was now quite happy that it was big enough to soak up the massive load he just blew out of his giant cock.
He wiped away the pools of cum resting around his perky tits and tried to get as much off his hands as possible.
Mike was amazed at just how sensitive his tits were. Even rubbing them with the cum rag was pleasurable! He couldn't help but wonder how women resisted the urge to play with their breasts non stop. Was it just his sister's breasts that were so sensitive? Perhaps it was just the eroticism of the situation Mike was in? Maybe it was just a result of the body swap magic?
Either way, despite the fact that Mike had cleaned up as much of the cum from his body as he could, he continued to rub his breasts with the rag just for the sheer pleasure.
Mike felt the overwhelming urge the swap again. It was such a powerful feeling he actually gasped out loud. There must be some reason he was so desperate to swap. He made a mental note to ask the genie about it, but in the meantime remembered his mom's panties were sitting on the bed next to him so he grabbed them, got off the bed and walked over to his mirror.
Mike took a moment to appreciate his beautiful body. His dick was soft but was still hanging low, halfway to his knees. His breasts we're a bit flushed from being handled so roughly but they were still perky and amazing.
He looked at the panties he held in his hands and fantasized about swapping his muscular, bubble butt for his mom's pillowy, voluptuous ass.
He turned the panties inside out and started rubbing them on his ass. He thought about his mom's wonderful butt swapping with his own. Mike felt a familiar jolt of electricity on his ass and a smile spread across his face.
He dropped the panties to the floor and watched his ass in anticipation. As soon as he saw the skin of his butt start to shift, Mike had a thought. He wished as hard as he could that the transformation would last just a bit longer.
He watched as his ass started to expand outwards in all directions. However, miraculously the transformation wasn't as fast as it had been for his tits and cock! As well, Mike could feel the stretching of his butt and it was a very erotic sensation.
Over the course of a minute, Mike's ass expanded outwards.
At first, Mike was very excited about the change but he slowly became concerned as the swap didn't seem to be working the way he expected. His mom had a huge ass, but it was a very womanly shaped ass. What Mike had sticking out from his backside looked like two flesh sized basketballs had replaced his glutes.
As if responding to Mike's concerns, the growth of Mike's ass stopped and instead it appeared to start changing shape. The mass beneath the skin shifted around, slowly taking the shape of his mom's heart shaped ass like someone was rolling out a ball of dough.
As well, Mike felt his hips actually start to widen. He shifted his stance to accommodate the new width of his hips. Mike was pleasantly surprised at this new change, excited that his body would change to accommodate his new posterior.
The changes stopped abruptly and Mike examined the result.
The first thing Mike noticed was a tattoo on his left butt cheek. Mike had never actually seen his mom's naked ass before, and she had never mentioned having a tattoo. It was just a simple blue and purple butterfly, but the most interesting thing about this tattoo was delicious feeling of being let in on a naughty secret he had never known before.
Otherwise, his mom's ass was everything he expected to be. His mom was fond of wearing stretchy yoga pants, which left little.to the imagination. However, Mike was now able to fill in the gaps of his imagination. His mom's ass was smooth and blemish free. She was a very healthy and active woman, and it was very much noticeable in her butt. There were no stretch marks and no cellulite. This was easily the ass of a 24 year old, even though his mom was in her early 40's.
Mike reached back with both hands and caressed his buttocks. The skin felt as smooth as he imagined it did. Luckily his ass hair had been swapped, unlike his chest hair when he initially swapped his sister's tits.
Mike was surprised to discover that his mom's ass was not pillowy at all. Even better, it was firm and plump. He imagined that, when she was being fucked from behind, her ass would jiggle around hypnotically.
Mike suddenly felt the urge to give himself a playful slap on the ass. It was just a light tap, but Matt was floored with the feelings that it enticed in him. As he watched his ass jiggle around from the slap, the slight sting he felt didn't really hurt but rather caused a deep feeling of erotic pleasure throughout his body. This feeling was further intensified with his tits and dick jiggling along with his new rear.
Mike was thoroughly enjoying his new ass, but he wanted to do more with it. While he explored the new sensations from running his hands over his fleshy butt and running his fingers gently across his new, sensitive anus, Mike started imagining what he'd like to do with his new rear end.
The first thing he thought of was to put on a pair of his thermal underwear. They were very stretchy, like his mom's yoga pants, so he'd finally be able to caress his mom's butt like he had fantasized about for so long. He was also really looking forward to seeing the massive bulge of his cock in the stretch pants. With such a massive rear and massive cock, he hoped that the fabric of the underwear would be stretched to the limit. They were solid black, but he was hoping they would stretch out so much that he could see the colour of his skin beneath it.
He dashed to his closet, his new body parts jiggling wildly from the motion, and he tore open the closet doors to grab the thermal underwear from his shelves.
Mike let out a shout of alarm when he found his brother, completely naked, kneeling down on the floor of his closet. Mike was so surprised that he tripped forward, his massive erect cock slapping his brother in the face.
His brother reached up to shield himself from the dick slapping his face, but he accidentally reached up too far and grabbed both of Mike's tits, squeezing them roughly.
Mike felt a wave of pleasure spread across his body from his tits being abused and from the sensations of his dick rubbing against his brothers face. A glob precum burped out of his cock head and smeared itself across Randy's face, turning Mike on even more.
Mike was finally able to swat Randy's hands away and found his footing enough to back up out of the closet. Randy remained on the floor, wiping the precum out of his eyes and looking rather embarrassed. He couldn't have been that embarrassed, though, as Mike noticed Randy's dick (which was replaced with his old 4.5 incher) was as hard as a rock.
“What the hell is going on here”, Mike asked angrily. “What the hell are you doing in my closet.”
“What does that even matter,” Randy responded, “what the hell is going on with you?? What about me, what happened to my dick? Did you swap them? Is that why yours got so big and mine is now so tiny? If that's the case, is that where you got your tits and ass? Do they belong to someone else? I know those panties belong to mom, so does that mean..."
“Just shut up,” Mike yelled. “I asked first and I'm the oldest, so you answer me first.”
Randy sat there sheepishly for a moment, thinking about what to say. It looked like he might actually start crying.
Mike sighed and sat on the edge of his bed. “Just come over here and sit down,” Mike said to him. “Clearly we both have alot of explaining to do.”
Randy smiled weakly and stood up, trying to hide his erection behind his hands.
Mike laughed, noting briefly how it made his breasts bounce up and down.
“Don't bother with being embarrassed or hiding your dick. I think we're a bit beyond that, don't you?”
Randy laughed nervously, but just shrugged his shoulders and let his hands drop, allowing his cock to bounce up and out. Mike noticed the mess of cum in Randy's pubes, instantly realizing Randy must have blown several loads while hiding. He bit his tongue, though, waiting for Randy to explain.
Randy sat down and told Mike the situation.
Turns out Randy was bisexual and frequently hid himself in Mike's closet to jerk off either while sniffing Mike's used jock straps or peeping on Mike's late night jerkoff sessions. Instead of taking the jockstraps to his room, or just fantasizing about Mike, Randy explained that the thought of getting caught was the biggest turn on of all.
“And that was why I came as soon as you opened the door,” Randy explained.
Mike laughed. “Well I noticed that you had cum, at least a few times, while you were hiding in there. But I didn't know you blew your load right when I opened the door.”
Randy just giggled at the situation. Mike was glad that Randy wasn't feeling awkward or embarrassed anymore. In fact, Mike noticed that the entire time Randy was talking, neither of their erections had subsided. Mike's nipples were also hard, the air from Randy speaking had cooled them and made them twitch.
He had also noticed Randy glancing at Mike's new body parts over and over again. Mike could practically feel the sexual tension between himself and his brother. Mike never considered himself to be gay, but maybe his new female body parts that were changing his sexual orientation. Mike never had a problem with gay guys, he just didn't swing that way. In fact, he always wondered if being gay would be better, since it would be way easier to get laid if he were gay.
Randy had stopped speaking, and Mike could see Randy's hands twitching. Mike assumed Randy was either trying to prevent himself from grabbing his own cock or from grabbing any number of Mike's body parts.
Mike was incredibly horny, and having someone here that was just as horny and willing to play with him was making it very hard to concentrate. Wasn't this wrong? Not only was Randy his brother, but he was only 14 years old. Randy looked so young that people often mistook him for 12.
“I can help you with that, Master,” Randy heard in his head.
“Balthazar, was that you talking in my head?”
“Yes, Master,” the genie replied. “If you are concerned about your brothers age, I can make it so that he's old enough to have sex without anyone thinking you are a pedophile.”
“He would still be my brother, though,” Mike thought.
He could hear the genie smirk. “Well I don't want to take out all of your perverted fun,” he said.
Mike was happy to head that the genie had a sense of perversion and pleasure. “Ok,” Mike said, “I wish my brother, my sister and I were all 18 years old.”
“Is that all?” the genie asked.
“Actually,” Mike thought, “I also wish that anyone I swap with from now on, besides Randy, won't realize that anything had changed. I also want my mother and my sister to forget about the swaps that already happened and think they always had my body parts.”
“It is done,” Balthazar said. “Now enjoy yourselves.”
Mike felt a sudden rush of energy course through his body. He could see from the look on Randy's face that he had felt the same thing. Mike's body quickly aged two years. Not much changed, but Mike could feel his muscles grow just a slight bit more, his tits expanded to a full 36DD and his ass remained the same, since it was already fully grown before Mike stole it. The biggest change was in his dick, which thickened a bit bit and grew at least another two inches. His balls also inflated, filling up with teenage spunk.
Randy's change was slightly more intense, but he didn't change much more than Randy had. Mike grew an inch or two taller, his muscles became a tiny bit more refined but remained very thin, and his cock increased about an inch. Mike was strangely satisfied to know that his original cock still had some growing to do. He wasn't planning on giving up this new massive meat any time soon.
“What the hell was that?” Randy asked, his breath excited by the rush of energy.
“You're 18 now,” Mike said to him, legally a consenting adults.
“How are you doing this?” Randy asked as he felt his newly aged body.
“Does it really matter,” Mike replied as he smiled and started to run his hands up and down his massive meat.
Randy grinned like a moron and started to jerk himself off. He reached out with his other hand towards Mike's tits, looking in Mike's eyes for his approval. Mike nodded, just once, agreeing to Randy's advances.
Randy let his hand rest on Mike's left breast, covering Mike's nipple. Mike moaned softly, relishing the feeling of another person touching his sensitive tits.
Randy dropped his cock and reached up with his other hand, groping both of Mikes tits and gently massaging them. Mike closed his eyes and moaned louder. Randy was turning him on so much just by massaging his tits. Imagine if he decided to kiss them.
Just as Mike thought it, Randy leaned over and kissed Mike on the lips, hard. They made out for a moment or two, then Randy broke away and took one of Mike's hardened nipples in his mouth and started sucking.
Mike moaned loudly. The sensation of having someone suck on his nipples was beyond what he had felt so far. He could feel a powerful sensation arcing through his body. He was beating his meat furiously, lost in the sensations.
Mije felt Randy reach out and grab his dick with one hand, the other hand he used to pinching his one of Mike's nipples all while continuing to suckle Mike's other teat. Mike's mind exploded with pleasure at the intensity of having so many of his sensitive areas being expertly stimulated.
Only a few moments later, Mike blew his third load of the day. However, since his balls had grown when he was aged up to 18 and technically had built up two years worth of loads, the cum erupted out of his cock like ware from a hose. A steady stream of cum started coating the boys and pooled on the floor beneath them.
Randy stopped sucking on Mike's nipples and instead leaned over and placed his head on Mike's cock. The sight of Randy sucking on what used to be his own cock, drinking down the loads of cum shooting out of it only made Mike scream on pleasure and shoot even harder.
After a full minute of cumming, Randy let Mike's cock slide out of his mouth. He smiled and leaned in towards Mike to make out with him again. Mike could taste the cum on Randy's lips.
Randy leaned back, and Mike could see that Randy had shot another load himself.
“This must be a dream,” Randy said. “It can't be real, it's too unbelievable. No person can shoot this much cum and still be hard. Man, I could go another ten rounds just like that. What's happening to us?”
“It must be magic,” Mike said.