Twenty years earlier.
In a research facility, surrounded by machines, test tubes and wires, a young woman lay dying. Her name was Bekka, and her whole life had been ahead of her. But a man named Nevyn had seen fit to rob her of it in one selfish act. As her soul became untethered to this world, her best friend administered CPR. She needn't have bothered. Her body was too far gone. In an act of desperation, her other best friend dove into her subconscious, to what end he didn't know. He just knew he wanted to save her, to keep her with them. No one had asked what she wanted. She hadn't fully understood what Derek was trying to do when he had reached her core, the center of her being. They just assumed she wanted to live. And she did, but not like this. Not eternally joined to another.
Derek had been Nevyn's pupil, learning how to body hop a person and become them almost instantly. Nevyn had taught him how to alter memories and twist emotions. And he had tried to teach him how to rewrite a soul, obliterating it's free will, turning it into a mindless slave. But Derek had never, would never, do that to someone. The only time he'd come close, was in this moment, when he tried to do the opposite of what Nevyn taught him. Instead of crushing Bekka's soul, Derek tried to fuse his with hers, and then leave together.
It had worked, but it had not been a happy occasion. Both Bekka and Derek lost their original bodies, and what's worse, Bekka was now confined to the passenger seat in whatever body they found themselves in. She was incapable of being in control, except for the scant times that Derek recruited other people that had the potential to be like him, a body hopper. Derek would do a deep dive into their subconscious, and when he did, Bekka gained complete control over the person. It was always such a short leash though, sometimes lasting a few hours, sometimes not even that.
She had acted out immediately at these tiny moments of freedom, almost always trying to party or get laid. She knew Derek and the team he was creating had a mission, and it was important, but given her plight, she struggled to care. Since Derek felt guilty for saving her, he never admonished her. He knew he had trapped her. He knew he would never be able to give her the one and only thing she really wanted, her body back. And since as far as he knew body hopper's lived forever, their souls were entwined for eternity, and she was trapped. With this knowledge, what had once been fun for her, had become a life without hope. Until fate intervened on a subway.
Present day.
It hadn't really been fate though. It had been a young man who felt lost in the world due to a shapeshifting family curse. He had come to find answers, and he had, just not the way he wanted. Now Trevor's body was no longer his own. He was still there, somewhere in the deepest recesses of his mind. Every so often, his consciousness would make an attempt at freedom, but over longer and longer intervals. His soul would climb to the top most part of his psyche and attempt to wrench back control from a foreign invader. But his consciousness would be flung back down below, time and time again. Every time this brief struggle happened, it lasted but a few seconds. It showed no outward struggle, except for a brief shudder all over his body.
To say it was Trevor's body would not be entirely accurate. By the strictest definition, yes, in so much as it was the vessel that encased his soul. At present he was merely a passenger and was in no way capable of steering the ship. But it also wasn't his actual body, because he had shapeshifted into a woman. It was a woman he would not have recognized. He had been forced into her form because he had accidentally brushed the hand of a horny husband on a crowded subway platform. That husband had been thinking about the phone call he had recently received from his wife. She had promised him that there was a sexy surprise waiting for him when he got home from work. Trevor now was that wife, at least in form, but his mind belonged to the soul that controlled it, the body hopper named Derek Johnson.
Derek was used to taking over bodies. He'd been doing it for many years, and except for the telltale shudder, no one ever knew anything was different about his hosts. This hop was a new experience for him though. It wasn't the fact that he was in a woman's body, but the fact that she had been a man mere moments ago. That alone was enough to rattle him. But to make matters worse, her body seemed to be incredibly aroused on a public subway that was speeding towards its next stop.
More information was needed. Derek wanted to do a deep dive into this person's mind and extract every last bit of information out of him. Why had he been watching him back at the cafe? Derek had grown suspicious when he had sensed eyes watching him while meeting a potential recruit earlier. Derek knew when he was being stared at. Being a body hopper, it was important to blend in, so when eyes were drawn to him, he could practically feel it. He had thought it was someone else at first, possibly his old mentor/nemesis, Nevyn. But it hadn't been. It had apparently just been some young man, who could transform his body into a hot, middle aged wife.
Derek's thoughts were hijacked by images of a man he needed to get to. It was the man that was back at the previous subway stop. She needed to get on the train that took her back to him. She needed him. He was her wife after all and she had promised him a sexy...
Derek wrestled back control of his mind. Where were those thoughts coming from? What was happening to him? He willed himself to sit down. He tried, rather unsuccessfully, to try and stop thinking about how much this body needed to go back.
"Don't forget about the security guard," Bekka's voice prompted in his mind.
Derek started at this, and then looked up at the slack jawed security guard whose body he had hitched a ride on. He said out loud in his male voice but through the woman's mouth, "Thanks for reminding me." He, or rather she, looked at the security guard and said, "Get off at the next stop and go back to your post."
"Did you-" Bekka started to ask.
"Yes, I wiped his mind. You know I've done this before, right?."
"Oh I'm sorry! I thought maybe the fact that a man transformed into a woman right in front of us might have distracted you a bit. I'll leave you to it."
Derek began to cross smooth, soft legs. That's when he found out the the body he was in was not wearing any underwear. "You noticed that too, huh?"
"So, are we going to talk about that?" Bekka prompted insistently. "And why am I so horny right now?"
"You're always horny," Derek countered.
"Yeah, but like, hornier than usual, and...it's getting worse."
Derek agreed, but said nothing. The arousal was growing and becoming more intense. He remembered this body had said that he needed to fuck somebody, anybody, right befofre he had shapeshifted into this woman right before his eyes. Derek understood how he felt right then.
"Derek, I...I think we really need to get laid," Bekka said urgently in his mind.
"I'm struggling right now to keep it together okay!. Something's...wrong with this body."
"It's the perfect body to get railed in. But it's got to be the right guy. I think I saw someone back at the last stop."
"Is it..." Derek began to ask, but Bekka flashed him a picture in their mind's eye. It was the same one he felt compelled to go to.
Derek noticed the telltale signs of the security guard coming around. He spoke the next bit in a rush. "I feel hornier than I've ever been, and it's for some guy we don't even know."