Eventually

Willow stared at you with bewilderment, as if you'd grown a second head. Remembering what Chloe told you and did to your hand earlier, you almost felt a need to check if she had done just that. However, you wagered that of all the girls you knew, she was the least likely to storm off, if only because you've caught glimpses of her browsing history on her laptop before. You hadn't seen slimes or the like, but she'd looked at some very bizarre stuff.

"Uhh, well." Willow seemed entirely on the fence about the proposal. She sat somewhere between daring to inquire further, and bursting into tears, at having this conversation with you; she didn't know you that well, and you guessed she might also think this was some sort of cruel joke or elaborate prank. "First off, if this is a joke, then I'm never coming to game night again. Do you understand?"

You nodded, and held out your hand. "Chloe, do you mind?" A glob of green seemed to materialize in your palm, no larger than a golf ball, but that was enough for a wide-eyed Willow to cover her mouth so she didn't squeal out.

"I just... I just, I don't know..." Willow's eyes never left the slime globule, until you leaned back in your seat, lowering your hand so nobody else might see Chloe's slime. "I... Jason, this is such a weird thing, right? This is like... you hear about internet stuff like this, but it's just stories, and... and now you have a slime-person in you who wants to be in me too? Are they, like, a parasite?"

"Well... I mean, kind of." Chloe tensed up her slime in you, which felt like an electric shock as she squeezed your insides briefly. "Ow! I mean... Chloe is a lot nicer than that. She's saving my life right now. It's really complex, but basically I'd die of internal damage without her, and it'll take about a month to repair according to her estimate."

You could see that Willow was still unsure, but the fact that she continued to question you meant two things: that she might actually go through with it, and that you were having the longest conversation you'd ever had with her and it was about goo.

"Do I get any superpowers?" Willow asked with a voice barely above a whisper. "Or will it hurt? Will there be bad stuff?"

You sighed, running a hand through your hair as you thought. "It won't hurt, you'll have to ask Chloe on the powers too. But... there are some other complications. And I'm being fully honest with you here just because you deserve to know every detail, I want us to be friends after all this still. First is that Chloe has to be able to swap that slime out regularly, which means bodily contact in some, uh, manner. Second is that she'd be linked to both parts, with the main bulk in me and the lesser bit of slime in you, which means it'd be possible that your movements might be influenced by my thoughts."

Willow's face turned red again, as she seemed to somehow curl up into a smaller ball than she had been before. Her face hid behind her knees, eyes peeking out over the top as her voice squeaked in a register just barely audible to human ears. "Whaaaaaaat? That's possible?"

"I mean, it's something that could happen, although I understand if you think that's--"

"I'll do it." Willow's quiet acceptance struck you as odd. You quirked an eyebrow at her, like you figured she was the one lying now, before she stretched out a foot to give your chair a little shove. "Don't give me that look..! I just said I would! I just... why did you invite me to a coffee shop to ask me something so embarrassing?"

You wanted to remind her that she was the one who mentioned coming to Tripp's, but that wasn't important to clarify. "We can talk wherever you're comfortable. It's not a long walk back to your place, is it?"

Still red-faced, Willow shook her head and stood up. "Follow me." You did as told, shrugging at the barista glaring at the two of you for sitting in chairs without ordering anything, but it was too late now. Willow was on some determined march, with a resolute expression that just barely broke past her shyness.

"You really know how to pick a good candidate, wow." Chloe finally decided to speak up, lifting your arm up to rest on your neck so she could talk softly and not startle Willow as you approached her apartment complex. "I can see it in her body language, she responded favorably to the mention of control more than the idea of gaining superhuman abilities. We are going to have a really fun time with this one."

You rolled your eyes, and then waited as Willow unlocked her door, inviting you inside. She shut the door, and then stood in front of you, almost like she was impatient to get things over with. "So... what do we do now? How do I get slime that makes you control me?"

"Whoa, Willow. You're really okay with this, just without knowing anything else?" She nodded again, without any hesitation, but said nothing more as her purple hair bobbed up and down. "I guess... okay, Chloe mentioned a kiss would do it.

"Then... uh, okay." Willow held her arms open, inviting you in, although she still seemed like she wanted to shy away from you out of instinct. You shrugged, and stepped forward, putting her hands on her waist--your hands sank into the baggy sweatshirt significantly to find her fairly slim torso--and leaned in for a kiss, locking lips to hers.

At first, you and her just embraced lightly, pausing without passion, not sure what to expect next. And then without warning, you felt a rush of liquid swell up your throat and out of your mouth, and a wide-eyed Willow felt the opposite as something entered her form instead. She stumbled back, bracing herself against a nearby chair, almost gagging from the intrusion. "Guh, that's gonna happen every time?"

You didn't have much time to respond, as Willow suddenly bolted upright again, standing at attention, before you watched as her arms stretched out from her sides, like she was doing morning exercises. Her arms bent inward, then stretched upward, before she lifted one leg up, then the other. The whole while, her face was turning red again, wide-eyed as her body quivered. "I don't... I can't stop it! Is this the slime? Are you making me do this, Jason?"

And as suddenly as Willow started, she stopped again, returning to attention. However, she seemed more relaxed, probably not by her own design. "She's good to go now, Jason--you can start thinking at any time. You can think of how you want to configure your control as well as how you want her to move, and I'll make it happen." Those words came straight from Willow's mouth, but when Willow's hands eventually reached up to cover her lips in her embarrassed state, you were pretty sure you had a good idea how this whole control thing was going to go.

And it was going to get very weird.

"Well, hmm, okay." You rubbed your chin, as Willow looked at you, morbidly curious as to what you were going to do with her, to her, or what you were going to make her do to you? You hadn't decided yet. "I guess, first, it's important to figure some things out. Willow, I know there has to be some boundaries, like... only controlling an arm, or only for a little bit of the day. What is your line?"

Willow seemed to briefly look past the embarrassment of her situation as she considered what you asked. The unspoken possibilities were endless. On one end of the spectrum of control, you might just minorly affect her behavior, or influence her control really loosely. You could take over one limb, maybe you only ever used her left hand for anything? Or maybe at worst, you just made her walk alongside you so you two could chat. On the other hand... you could go all-in. Custom-tailor Willow to be the perfect girl for you, moving her body from the neck down. Or maybe you'd want to control her face and head too, and fully move her while she can only observe her own actions? Maybe you design her to behave like a totally different girl? Maybe you design her movements to not even be human? You could go so **** as to turn her into a toy, where she just sits idly and waits for you to do what you like to her. But, surely, Willow had some acceptable limit, the fact that she was even agreeing to any of this at all seemed to astound you. So you'd take whatever you could get in this custom girlfriend you were about to receive.