You could use a toy

Half-undressed, you stood up, looking around. You wondered briefly, was Laura the kind of woman who valued moments of privacy in her own office? Not just solitude, but taking care of various urges that might arise throughout the day... You peeked into her drawers, looking through her things. You wondered briefly if Laura would be able to piece together what you were doing before you found...

A nice, compact vibrator. Hidden in her bottom drawer, under a box marked 'biohazard', likely to keep people from fishing around in her things. You eagerly picked it up, breath quickening as you stared at it. Ela could feel your excitement translate into the body, since unlike when you were controlling her, these hormones and chemicals that flowed through Laura's body weren't any sort of mimicry or simulated signals, these were the real deal. Ela was experiencing arousal precisely as a human would, and while it would undoubtedly help her improve her own elastomer body's sensations, she was finding it hard to be anything but enthralled in the real deal.

You glanced over at the window to the office, the blinds were already closed. Good. For your next step, you slipped out of Laura's skirt and pantyhose, down to just black lacy panties. You ran a hand along those abs briefly before you slipped your fingers under the panty fabric, sliding those down last. You shivered as you realized you were soon staring at Laura's nude form, carefully maintained for a perfect blend of toned strength and feminine curves.

"The anticipation is driving me wild," Ela said quietly, seeing everything you did, feeling everything you felt. She wasn't doing any other tricks with the body while you were in command, so everything you felt and saw was totally from Laura's form! You thought momentarily about how Laura must feel, sensing her body standing proudly, looking down at herself, but seeing and hearing nothing. Surely as you turned on the vibrator, she must have known what was about to come next...

You carefully touched the vibrator to your borrowed pussy lips, not yet inserting it, just running it up and down the length of the slit. Laura's body shivered, likely since she didn't do things precisely like you did, so the body couldn't anticipate whatever you were about to do and respond with muscle memory or anything. Teasing the body like you were doing, enjoying and savoring your new shape, seemed to make the body melt a little at its own touch, sending waves of pleasure rushing through your form.

Ela was just squealing delightedly in your mind now, while you decided to take a seat, spreading Laura's legs as you tickled up and down with the vibrator, moaning lightly when you hit just the right spot. One hand returned to Laura's breasts, fondling delightedly, seeing the pleasure from Laura's perspective--and forcing Laura herself to endure it in silence!

Soon, though, you had to go further. You had to push the body more, even though you felt the pleasure building up in the body. Ela certainly had no intention of disagreeing with your plans, so you dipped the vibrator deeper, allowing it to really shake within the vaginal walls. You clenched your teeth, trying to avoid screaming out in pleasure, merely to avoid attracting any unwanted attention. You pushed it slowly in and out, in and out, feeling the wetness of Laura's body help lubricate your playtime.

"You have to keep going!" Ela said, egging you on. The sensations for her must be incredible, given that it was her first time knowing anything like this! But you very quickly knew one location that would drive Ela over the edge...

Your hand moved the vibrator up to the top of Laura's slit, wriggling slightly into the folds until you came into contact with a little nub, and all hell broke loose. Your body tensed up like you had been struck by lightning, and this time it was your turn to make a high pitched squeal, your wide eyes fixed upon the ceiling with your head arched back. Your body behaved almost like this primal being took over, gripping roughly at breasts and bucking hips, where the only thing you were able to really control was maintaining the vibrator's position on your clit. It was like you were behind the wheel of a supercar, where your arms could barely maintain a grip on the wheel but you were able to keep your foot on the gas.

Ela lost the ability to form words as your borrowed body quickly seized up, and then burst forth in orgasmic eruption, and you practically had to stick a fist in your mouth to muffle your desire to scream. You'd never felt anything as fantastic as what this body was capable of, though you'd enjoyed all your previous experiences... Laura, lucky Laura, had a body that allowed her to feel pleasure as if she was given a gift from the goddess of love the moment she came. How is it she's not the happiest person on the planet?!

You collapsed back in the aftermath of expending all of Laura's energy, panting and sweating. Your hair was an absolute mess, as was Laura's chair now. Miss Estrada was going to have a lot of cleanup to do...

Or, did she? Ela immediately piped up with some thoughts. "Let's keep her!"

"...What, like, a puppy? We can't just put Laura in a cage for the rest of her life." The thought did amuse you, but you weren't that cruel. You leaned forward, looking at Laura's body and realized that it will be difficult to returning to your normal self after trying something like Laura's form.

"Okay, well not like that I guess. But this body can stay with us. Like, I can store her in my upper-dimensional space and essentially preserve her until we want to use her. Or I could absorb her body and mind into my structure to give myself more mass so I could express her body with ease and get all the benefits of her real senses instead of my simulated shapeshifter ones. Or! Or, we could put you in her body, and then you'd be her and we'd have her body all the time to do all this! Oh, that would be really fun!"

You hesitated. Both of those ideas seemed intriguing, but posed their own challenges--for one, that would require some significant logistics, beyond whether it was even safe enough to let Laura, genius that she might be, perform a brain transplant on her second day of independence.

"Interesting ideas," You said, as you stood up to shake out some of the fuzzy glowing sensation your body felt, so you could think a little straighter. "What about Laura's own brain though?"

"Oh, we could repurpose it, like maybe some more nanites would let us use it like extra cognitive processing? She's probably really smart, we could just override part of her with part of you like you're doing with me and then she'd be on board for the plan herself, probably! Or, we could just donate her brain somewhere too I bet, I'm sure there are other projects that could use a brain around here, right?"

You giggled a little at that thought as well. "Nanites would allow us to let her just override her mind whenever we'd want to use her, but let her keep living her life normally, too. If we were to do that, or just let her go outright, would she remember any of this? She'd know I did something at least."

"Hmm... that idea is also possible, though I still think you keeping her body is more fun. But, well, I could induce a little short-term memory loss, so she'd not know we did anything when she woke up. If we had some more nanites that could act like a relay, I could maybe have more of my elastomer that is actually entirely disconnected from my upper-dimensional structure to control her--a remote-control self just like how you can remote control me! That would really let me keep a good grip on Laura's body when she's close enough, the nanites might not be enough on their own to overpower her, more just influence her."

So many options. You crossed your arms, looking down. Could you really just let a body like this go, when either you or Ela, or both of you, could find ways to enjoy it? You might as well consider a potential future of taking her body. Where would that stop though? Were you just enabling Ela, and by extension yourself, to become a body-thieving monster to absorb the bodies and minds of others in order to add to the already impressive set of abilities you two had? That could put you on a road with some serious consequences... who knows what you might do with a more massive shapeshifter like Ela, even if you were able to control her. If you wanted to talk her out of this plan, you needed a really good alternative!