Have some fun with Steph's body

"C'mon, do something," Steph mumbled as your face remained relaxed so she could interject whatever commentary she needed to you. "Your cock is still pushing inside me..!" Stephanie twitched slightly around you, not able to do much but definitely able to give your crotch a squeeze, just enough to remind you of what you were feeling inside.

With a grunt, you looked down, rubbing again at a spot below Steph's bellybutton, feeling the firmness of yourself just barely within her, both of you moaning slightly as it grew back to full size again with the attention. She shuddered her whole form over you, a rippling that felt like a thousand hands caressing your body.

Still, you paused. "Are you sure you want that?" you asked, glancing around at all the other chambers. Some seemed preoccupied with their own predicaments, getting tangled up with monstrous beings, but others seemed like they'd sorted their situation out and were looking around at other chambers, same as you. "I don't know that you would want an audience."

"Will, I don't care. You're literally inside me in every sense, you could do something fully clothed if you're discreet and you feel like you have to protect some sense of modesty for me or whatever. But I'm some lab rat whose body has been modified so another person can control me, some strangers seeing my boobs is the least of my worries. C'mon, I clearly feel that you want to!"

She was right, your body was heating up inside Steph. While she was skintight in many areas like the hands and arms where she didn't budge much, it seemed that the areas that contained natural padding inside her body, the hips and chest, did afford her some amount of flexibility to move on and around you. It was strange, you thought, that she would have that at all--maybe she was specifically designed to be worn by a male, which is why her internal anatomy is like this at all? You reached down to the crotch, feeling the smoothness of Stephanie's body under the jeans so long as you didn't push too hard to reveal the truth of your anatomy beneath hers. With a quick unzipping of your jeans, you pulled the jeans and panties down from Steph's hips, to see if they'd modified anything else about her body if you were penetrating from within.

"Going right for the kill, huh?" Steph whimpered, her voice shaking in anticipation as she felt you twitching in her while also feeling her body being exposed to the cooler air. "Before you ask, as far as I know, it all still works. If you shove a finger up there, you'll be feeling all me, and that means if we had another partner I could probably be fucked inside and out. You're in kind of a special pocket based on the diagram I saw, which means you don't have to take me off to do something basic like using the bathroom. Urgh, that's a weird thought..."

You began to unbutton the shirt next, unashamedly wanting to use Steph's body to further your desires to do things to her, thinking nothing would be hotter in the moment than making her fondle her chest as you looked in the reflection. Still, while you absent-mindedly disrobed, you wondered about a great deal of things. "How does food and drink even work with you?" you asked. "Your throat just seems to open up, so that just goes to my stomach."

"I don't know, I'm sure I absorb it somehow. I'm the one who has to taste things, though, so keep that in mind when you are picking dinner if your head's in mine." Well, that's a rather disappointing thought, not being able to taste your favorite foods if you have to keep wearing Stephanie like this!

Soon, you had your shirt unbuttoned and opened, though still wrapped around your shoulders, giving you easy access to grab at Steph's breasts, hastily doing so. You heard her moaning with each touch, each squeeze, which you enjoyed yourself. Like this, as weird as it was, Stephanie was like a wearable toy, something at arm's reach that you could fiddle with and feel her squirm in response. Something about that thrilled you greatly and prompted you to direct another hand down to feel at her slit. As your fingers felt around and pushed in, again you didn't feel much of anything, at least nothing so stimulating as whatever was causing Steph to whimper once more. Just about anything you wanted from Steph, you could make her do--slutty poses and expressions, dirty talk, and even just using her existence as a whole-body sleeve for you to stimulate your own form! She could only watch and comment, but as far as you knew, she couldn't do much else.

After you'd felt her body all over, and even jiggled Steph's tits against the glass for someone in another chamber--you lost yourself in the moment and ignored Steph's groans as you made your puppeted partner into someone she likely wasn't with how sexy you made her act--you decided you were plenty hard for the main event, strange as it may be. Recalling how everything felt earlier when you were putting Steph on, you placed your hands on your hips, feeling the padded areas of Steph's body wrapped around you where she had the most mobility around your form.

"Yeah, that should do it," Steph said. "C'mon, Will, fuck me good and hard from inside me!"

You smirked a little, causing Steph to reflect the same on her face. Spreading your legs into a slightly wider stance, you thrust your hips forward and upward while your hands tugged Steph's hips downward from the outside. It worked, and it worked so well! You felt your cock pressing further into her body, and she squealed in delight at the sensation too. Testing things further, you moved your hips back while lifting upwards with your hands, pulling slightly out of her from within to line up for another thrust.

It was surreal, the idea of having sex with a stranger you'd assumed as your body's exterior and doing it all from within them, but there was something thrilling about this absolute control you seemed to have over her. There wasn't a ton of internal movement, but there really didn't need to be, the way everything shifted and squeezed as you moved Steph's body around your own, it felt plenty stimulating!

After a few minutes of figuring out the optimal movements instead of just wildly wiggling Steph's body around your own, you managed to get your movements coordinated with what she could do on her own, such that you didn't need to use your hands on her hips to guide her. Rather, you found that moving Steph's legs and hips sexily, like swaying her hips or even a twerking sort of motion, gave you the best movements inside her for her to respond to, which then opened up your hands to roam once again. You gripped at her breasts as you made her swirl her hips from side to side, which seemed to hit the sweet spot for you and Steph both. Screaming in two tones, the two of you came within moments of each other, stumbling to the ground as you felt Steph shudder all around you.

You lay down, sprawled out, staring up at the bright lights in the top of your chamber, gasping for air. "I've... never had better..." you managed to say.

"Me either," Steph replied, having to time her words with your inhales and exhales, yet again demonstrating just how in control you were of Stephanie's form. "I don't know if that's sad or not, if the best sex of my life happened from a guy who was encased entirely in my body... but I don't care. That's not the last time we're doing that, understood?"

"Yes ma'am." You lay still for another moment or two before the glass chamber around you finally started to lift upwards, freeing you from its confines. You had to wonder if maybe someone else had been watching you from afar in those moments... but at least now, you had a chance to go somewhere else and hopefully get more answers!