Extra Kinky

There was something about how they said it that struck a chord with Jenny, not nervous at all, but confident in their subservience to her.

Sitting on the floor next to them, Jenny kissed Alex on the cheek. "Looks like you're becoming a lovely sex demon, honey. That witch was right, this should help you open up to more kinks." She tapped a finger to her chin, thinking. "What to call you, though? You're not a succubus or an incubus...an encubus, perhaps?"

"If that is how you'd like to refer to me, I would not object, mistress," Alex replied, their voice smoother than she was used to. Then she saw something even stranger: her cum on their face starting to disappear...no, not disappear, it was sinking into their skin. Once it was all absorbed, they shivered, then looked at Jenny with a satisfied smile. "Thank you for the meal, mistress."

Then, before Jenny's eyes, Alex's skin changed hue once more, darkening into a more vibrant purple, and the horns on their temples growing out enough that they began to curl back towards their hair. Looking behind them she could see their tail growing longer, not stopping until it was almost three feet long, and looking into their eyes she saw the sclera darken until it was pure black.

"Up, let me see." Even though she was trying to command them, Jenny's voice came out breathless. How could she command a creature like this?

And yet, Alex obeyed eagerly, standing to full attention and doing a slow turn. Their ass hadn't grown any larger, but it was obvious now what other alterations had come to Alex's build. No one would call them athletic or even slightly muscular anymore. If they still had that strength, it was hidden beneath a curvier, softer exterior. Though looking at their purple skin, Jenny had the sudden impression that it could take far more punishment than any mortal's equivalent.

With the changes seemingly finished there, she stood up and raised a hand to stop their spinning, blushing a little. "So...feeling any kinkier?"

The smile on Alex's face grew by millimeters. "If you're wondering if I'm more interested in continuing those roleplay conversations, we'll have to see. But if you wanted to tie me up in real life...well, I'm your encubus to play with as you will. Spank me, fuck me in my sleep, use me until I'm too sore to move."

Jenny giggled. "I'm...a bit too tired to try any of that out right this moment." Then she leaned in, and kissed Alex softly on the mouth, before pulling back and giving them a worried look. "But honey, how are you holding up? I love the new look, but I do enjoy seeing my cuddlebun all cute and blushy." Changing the dynamic was all well and good, but Jenny loved Alex for who they were.

The moment of romantic intimacy, uncoupled from any sexual undertones, seemed to shock Alex out of the state they were in. "Oh! O-oh no, Jenny, I'm so sorry, I didn't mean to worry you. I guess I was j-just leaning into the changes a little? I think your cum might have gotten me kind of t-tipsy or something too..." They leaned on her a little, and Jenny breathed a quiet sigh of relief.

This is definitely still Alex. Reaching up to pet them on the top of their head, Jenny whispered in their ear, "It's okay, love, I'm okay, you're okay. You're just...a sexy demon now. Which, I'll be honest, I don't mind." She pulled them into a brief kiss, and found herself loving the look of worshipful meekness in their eyes.

Jenny led them by the hand to bed, where they cuddled up close after Jenny stripped off her blouse and bra. She adored how Alex reacted, as though the sight of her topless was the most eyecatching thing in the world. Settling in behind them as their big spoon, Jenny cuddled into their back...before noticing just what that was like, now.

Alex's tail wrapped around Jenny's waist, comforting and supportive, almost as though it had a mind of its own. The encubus's large ass felt absolutely delightful to rub up against, in a way Jenny feared might end up distracting her from sleep.

Starting to get aroused again, Jenny couldn't help grinding into Alex's butt. "Honey, that thing you said about me fucking your ass in your sleep might just end up happening, considering what it's like rubbing against this thing."

"Y-yeah, it's really big now..." She couldn't tell if they sounded embarrassed or excited, though perhaps it was some of both. "Um...if you do, um, f-fuck me, I wouldn't mind, I guess. If you have any trouble with my ass, you could try my face. You know I'm a deep sleeper, so I probably wouldn't wake up even if you f-face fucked me into cumming a few times."

Seeing the blanket shift as they started getting hard again, Jenny reached around to stroke their thick cock. "What a deliciously naughty idea, honey~ Why, I might just have to recharge myself with some of your cum if I'm going to do that." She rubbed a thumb against the head of their cock, and they moaned, clearly excited by the idea. "Oh my, what's happened to my innocent little Alex? You've turned into such a pervert...would you like to wear a collar, honey?"

"Y-yes!" they moaned.

"With tags that tell everyone you belong to me?" Jenny purred.

Precum started to bead on the tip of their cock. "Y-yes, please, I want it!"

She pretended to consider something, and as she did so, Jenny stopped playing with Alex's cock. They turned to look at her, pouting, which only made her enjoy the teasing more. "Maybe I should just ask you to quit your job. Live with me, as my live-in fuck-toy. My demonic sex doll, to use and fuck and abuse however I want." She punctuated the thought by gripping their cock tighter, harder than she ever had before.

Alex cried out, voice thick with pleasure. "Fuck, yes, yes, yes, anything, anything for you, abuse me!" They shouted the words, screaming their masochistic needs.

Jenny leaned in close and bit their neck, hard, making them squirm and wiggle in delicious submission. "Good slut. Now then...your dirty mind seems to have gotten me excited again. Take responsibility for that, you pitiful whore, and get me off."

The few times Jenny had used such rough language with them during sex before, Alex had seemed conflicted, so she'd backed off from it. Now, however, the encubus ate it up eagerly, moaning in excitement, begging to be demeaned more.

It took a long time for them to get any sleep, especially since Alex's cum was so useful at getting Jenny back to 100%.

When they were both finally too sore and cum-stained to continue, Jenny made sure they both got aftercare. For the transformation, for the sadism, for the masochism, reinforcing that all her harsh words and all their cries of pain were consensual and wanted and part of the fun.

As dawn finally came, Jenny was barely conscious, staring at Alex sleeping next to her. The potion had definitely done what it needed to do, and Jenny was quite happy with the idea of her nonbinary love staying as demonic as they wanted to.

It did turn out the next day that Alex was definitely open to more kinks, though their writing ability for text roleplay remained...lackluster. Even a demonic transformation can only fix so much.