On his way home, Alex spotted a closed package lying on the ground. Curiosity piqued, he picked it up and searched for an address to return it to its owner. Unfortunately, there was none. He decided to bring the package home with him and open it to see if there were any clues inside about who it belonged to.

He headed directly to his bedroom and carefully opened the box. Inside, he discovered a remote with an unusual array of buttons. Upon further inspection, he found a note that simply described the functions of the remote, but it offered no information on who it belonged to or where it came from. Alex perused the note, which revealed that the remote was a beta test sex toy designed to introduce new experiences into the bedroom by transforming partners and objects. Next, a picture of the remote appeared with lines connecting each button to its corresponding keyword.

There were terms such as genderswap, height alteration +-, increased libido +-, aware/unaware state, matching clothing, fluctuating intelligence level +-, random, adaptability, and freezing/unfreezing, among many other possibilities. Not description about the effect. While reading through all of the options, Alex couldn't help but laugh silently. It felt like a bad joke.

He picked up the remote and examined the buttons. How was this device capable of altering people? He asked himself, while his brother yelled loudly in the next room, most likely playing video games. It annoyed him to constantly hear his screams every single day. Alex determined it was necessary to test if the remote was functioning properly, and who better to use as a guinea pig than his brother.

Quietly, he made his way to his brother's bedroom. The door was slightly ajar, and he could see Miles on his bed deeply focused in a game. Alex reached for the remote control and pointed it towards his brother. He pressed a few option buttons and pressed the launch button.

To his amazement, his brother transformed right before his eyes. His brother's body began to shrink and slim down, while his hair grew longer and even his clothes changed shape fitting his new body. Before Miles knew it, his brother had transformed into a stunning girl. Even His video game controller transformed into a dildo.

Miles felt so horny, unaware of what just happened to him. All he could think about was satisfying his intense desire. His hands gripped the dildo tightly as he began to massage his wet vagina, moaning in ecstasy. He didn't care who heard him, even with his bedroom door slightly ajar. As he slid the dildo inside of him and began to furiously masturbate, his moans grew louder with each thrust.

Alex chose to leave him in that state and test the remote on someone else, perhaps his stepfather whom he wasn't particularly fond of. He found him in the kitchen with his mother. Alex took the remote selected a few option and pointed it toward his stepfather.

Alex was taken aback as he watched his stepfather and mother transform right in front of him. They changed genders and became much younger, appearing as a new, vibrant couple in their 20s. The pleasure between them was palpable as they began to kiss passionately. And before Alex knew it, his stepfather was on his knees giving oral pleasure to his mother's newly formed dick.

He never intended to alter his mother, and he was baffled as to why she had changed.

Alex heard a voice behind him say, “How the hell did you pull that off?” He turned around, startled, and saw his step-brother John standing there. John was two years older and had always been much bigger, taller and stronger than Alex.

“I… I…” Alex stammered, at a loss for words. Quickly, he discreetly pointed the remote towards John and pressed the freeze button. John was completely paralyzed, unable to move any part of his body except for his eyes. They tracked every movement of Alex, who was fiddling with a strange remote and aiming it in his direction.

John's entire body started to shiver as he watched the world around him grow larger. In what felt like mere seconds, he was now looking up at Alex from a significantly lower perspective. Odd sensations coursed through his body and face, but he couldn't see any outward changes happening. However, he could feel a tickle on the back of his neck where his hair was rapidly growing longer. And when he looked down, he saw breasts forming on his chest, barely covered by a low-cut top that he didn't had before. Suddenly he felt that he could move his body again.

“What have you done to me?” John cried out in shock, his voice now high-pitched and feminine. He looked down at his new body, petite and feminine, and frantically tried to cover himself with the short dress he was wearing.

Alex smirked and replied, "I simply gave you a body that suits you better." John's face contorted with anger as he screamed, "Change me back immediately!" With the remote pointed towards John, Alex increased his libido with a flick of his finger. John was overwhelmed by the pleasure, causing him to drop down and start caressing his new vagina and newly developed breasts. He let out soft moans and whispered, "What are you doing, you perv?"

In a rare moment, Alex felt a sense of power and control over his step-brother. He saw an opportunity to use it to his advantage. "If you give me a blowjob, I'll change you back," he proposed to John.

"No one would ever suck your small penis!" John spat out in between moans, now on his knees with his butt raised up in the air as he fingered his vagina.

Alex was hurt by John’s word. He aimed the remote at himself and selected the option to increase his penis size. He could feel it expanding uncomfortably in his jeans. He quickly made his way to the nearest couch and freed his newly enlarged dick.

"It doesn't appear to be that small," he proclaimed with a smile. He aimed the remote at John and activated a new desire on him.

John's envy towards Dick grew stronger in his mind.

His gaze landed on Alex's huge cock, and he slowly crawled towards him. As soon as he got to Alex, he took hold of his dick with his small hand and began to lick and suck on it.

While John was working his mouth on Alex's penis, Alex made a decision to implant a new desires in his mind. The alteration of John's mind had transformed him into a cock-hungry slut, always eager to suck or fuck any man. However, unlike the rest of his family, John was still aware of who he used to be before this change took place.

After a while, Alex ejaculated in John's (or now Joana's) mouth. She eagerly swallowed every drop. Later, Alex reversed the transformation for everyone except Joana. She was now his step-sister, whom he would have sex with daily, and occasionally, Joana would request to be changed back but he would remember her that she had to take his first offer.