But first, some setup.

Stacey picked up the pyramid in trembling hands. "Okay... I think just two for now. How how do I get this-"

The pyramid unfurled on it's own, opening up like a flower to reveal a small core of bright green light within. a pair of smaller lights sprang from it, and the thing snapped shut as the lights flew about the room before settling onto the wooden floor of the apartment. They expanded and dulled, quickly taking on a form that, to the surprise of the girls, was only halfway familiar.

The Spooky Island Demons that Stacey was familiar with looked brutish and emaciated, inhuman and at least twice as tall as a regular person. The ones that took form more resembled humans, albeit ones without any real defining sexual characteristics, the same general skin colour and tones of the Demons, claws where their finger and toenails should be, eyes that glowed a familiar bright green colour and a height only a little taller than Stacey herself.

The one on the left waved, the other folded their arms and smirked, speaking in a feminine voice. "So, you're the newest ones, eh?"

Stacey gulped. "Um, yeah."

The speaking demon chuckled. "Lemme guess, expecting someone a bit more monstrous? We get that a lot. Our new Mistress changed our forms a bit, said it would be less likely to give the uninitiated heart attacks before we got to the fun stuff."

Jenny spocked a brow. "New Mistress?"

The speaking demon waved the question off. "I'll explain later. Right now we need to get to know your bodies, and you need to get to know what it's like to be a protoplasm."

Stacey gulped. "Uh, right. So, how does this work?"

The demon gestured at the pyramid. "As you've likely seen, that little pyramid is a gateway that summons us to it's location. All you have to do is say the number of demons you want, and we'll appear. It doesn't have to be exact either, you can say something like 'enough demons for everyone in this room,' and it'll call up whatever number that ends up being. Since we're your first two summons, we'll be the ones generally in charge of the rest unless you have something specific in mind."

Jenny nods. "Okay, with you so far."

"Good. The next step is pulling out your protoplasms and replacing them with us, I assume you've seen the film, with the claw setup and such?" Stacey's blush was all the answer that was needed. "Well, one benefit of our new forms is that we don't need that whole song and dance anymore, we can just pluck it straight out of you and jump in." The demon reached over to the box and plucked out the gem. "This is where we stash the protoplasms, unless you want them all to watch what we get up to. This thing is basically indestructible, so there's no chance of letting out anyone you don't want to. Once we've had our fun, we put them right back, unharmed."

A grin. "And the fun part is, whatever we get up to while we're having our fun doesn't blow back on any of our hosts."

The humans looked at each other, then back at the demons. "How the hell does that work?" Jenny asked. "What, does everyone you jump into think they just had a weird dream or something?"

The demon shrugged. "I don't really get how it works either, but it works. So, you ready to rock?"

Stacey took a deep breath, set the pyramid on the table and nodded.