I did what I could to explain Ace Prime to Amy and April. The culprit himself just kind of sat back and let me handle it. Ultimately my explanations left everyone less than satisfied, but since only Ace Prime knew the details of how he got here and he was keeping mum, that was doomed to happen. I figured the best thing we could do would be simply to continue along with the expedition.
 
"So wait, you've been in here for the last few days, at least?" Amy couldn't help but ask Ace Prime as we began walking towards the back of the large entrance chamber. "What have you been eating? Don't tell me Amelia's been stuffing food into her...self for you?"
 
I couldn't see Amelia's reaction from inside here, but I got the feeling she was pretty embarrassed.
 
He chuckled. "Actually, that's a pretty good question. If you guys don't mind following me for a bit, I'll show you something cool."
 
I shrugged, so we began our journey towards some side tunnel behind Ace Prime. Amy seemed fairly comfortable, and continued making small talk with Ace Prime -- not too differently from how she talked to me normally -- but I noticed that April was still in awe at the space around her. She was constantly looking back and forth, as if trying to figure out the trick behind it, to recognize where the illusion of this massive organic space became transparent and she could figure out our real location. "Amazing, isn't it?" I commented. "We really did get sucked into Amelia's inner world. I've spent hours in here and it still seems like it stretches out to infinity."
 
"It's insane. If this is really all in your new girl's cunt, then... physics, biology, geometry... even modern politics would be completely overturned when people found out this was possible. How many other people in the world are there like this? How many exceptions are there that turn the status quo on its head?"
 
"As far as I know, Amelia's the only one. But in truth, who knows?"
 
"Yeah, it really is amazing in here, right?" Amy interjected. "It's a shame that she can't see it for herself. I guess that's why we have to take lots of pictures."
 
"Well, that aside... what we're looking for should be right through here," Ace Prime added, pointing at a narrow valve in the pink passageway wall. "Just gotta... squeeze... through," and he began doing just that.
 
The whole area quaked as Amelia tensed up. "Oh god that tickles every time!" her voice resounded. "Hurry up!"
 
"We're on it," Amy followed, clearly not intending to show any hesitation. She followed quickly in the same path, grabbing April by the hand. April lost her balance and nearly toppled over entirely, but Amy's strong grip pulled her towards the tight-squeezed valve in Amelia's inner flesh. I nearly lost my balance, too, as the entire passageway quaked with Amelia's ticklishness. Finally, with the two girls through, I managed to grab hold of the opening and pull myself through as well. The tight, muscular tissue massaged me all over as I tugged and toppled through to the inner chamber. My head hit something hard on the way through and for a brief moment, I completely lost track of where I was.
 
* * *
 
Breathing deeply, I righted myself and took stock of the situation. I knew this place. It was utterly familiar to me. I was in a hallway, linoleum floors, plexiglass windows, worn and graffiti'd cream-colored walls. I was in my high school, just out side my tenth grade science classroom. Science was the last period of the day, but from the look of things, class had already ended some time back. There was only one person wandering the halls. My sister, Amy. Strangely, she wasn't wearing any clothes.
 
Her glance met mine. "Ace! Wait, which Ace is it?"
 
"Which Ace?..." Recollection dawned on me. I had been inside Amelia just a moment ago. Maybe I still was. "I'm... the original. Not Prime. But aside from that... how is our high school in here?"
 
"Amelia..." my sister called out to the ceiling above us. "Is this...? Can I... touch it?" I had no idea what she meant.
 
"No... don't... I'm embarrassed... don't look at it..." came a protest, meekly, from everywhere at once. Amelia's voice.
 
"But such an important memory..." Amy spoke as if in a daze. Seeing something I wasn't. "Please let us look..."
 
I wasn't sure what happened next, but I blinked and my vision lurched for an instant. In front of Amy... no, in her place exactly, as if an overlapping image... I saw Amelia, not as she was now, but as she was three years ago. Her hair in bookish braids. Her figure smaller, slimmer than it had since filled out to be. Almost matching with Amy's. She moved with a different air, slowly, uncertain of herself. Both of them in unison, as if one. She was headed towards the classroom. "You forgot your book..." Amy mumbled while tracing the same steps. I fell into sync with them, stepping forward slowly.
 
As Amelia reached for the door, she hesitated. There were hushed voices coming from inside the classroom. Slowly, she cracked open the door and peered inside. I, too, leaned over and looked in.
 
There were two students, bodies pressed close. I recognized both immediately. The taller, with the rough blond hair, was myself. The other, also with blonde hair, but much more smooth and constrained, resting in silky waves across bare shoulders, the straps to her top pulled down to the sides... it was April. Their lips crossed and intersected in a passionate embrace. I felt a hole building in the pit of my stomach.
 
Amelia's breath caught in her throat. She froze, staring at the illicit liason unfolding in the after-hours classroom. My other self proceeded to undress his partner. My own memories flooded my mind, recalling the anxious yet blissful disbelief of my first time. Amy/Amelia looked ready to cry as April unbuttoned the other me's jeans. I tried to reach out a reassuring hand to her shoulder. As it made contact and I felt the tiny shiverings in her body, I felt it. She had been watching! All this time, I never knew. Amelia had liked me even then, before I hardly knew who she was. Yet, despite that, she'd said nothing, said nothing and simply watched as April and I began our long-lasting, deeply physical, ultimately ill-fated romance. The feelings she had endured all this time. Finally, as the lasvicous thrustings began, she slammed the door shut and collapsed into a sobbing heap. The couple in the classroom didn't even notice.
 
I felt Amy's shoulder, not Amelia's but Amy's, my sister-but-not-by-blood, once unintentional lover, who'd saved me from the dangers of Amelia's inner labyrinths before. She, too, was watching this, and crying as well. She was caught up in it, her feelings no doubt a swirl of confusion and pain together with Amelia's, watching her girlfriend make love to her brother in another time... I realized that they, too, must've been caught up in this recollection, Ace Prime and April herself. That was them in the room, acting out a memory from three years prior. Only I had no place in this scene. So I had to do it. I had to break it. I put my weight onto Amy's shoulder. I leaned forward. In my eyes, I could see her startlement, and Amelia's, too. I couldn't tell if it was Amelia or Amy who moved her other hand around my neck and pulled me close. One flesh, two confused souls looking out. I held them, felt the delicate press of Amy's smaller chest. I could feel in that same chest, echoes of the press of Amelia's body three years younger. The embrace she wished she could have given me back then.
 
"I'll grant it to you," I said. "I'm sorry it's late."
 
Amy grinned. "To think I'd get caught up like this between you two again... It's okay. I don't mind guiding you together like thisss....." and she gasped a deep breath, as my hands found a sensitive spot in the small of her back. Our lips locked in an embrace, exchanging nips and brushes of contact instead of words. She spread her thighs apart, hooking her ankles around my waist and pulling me closer. My rod, already fully awake, rubbed its length against her gentle southern lips. I spread my kisses to her cheeks, her chin, the side of her neck. I massaged every part of her, I felt Amy and Amelia cry out in unison at the stimulus. She pushed her weight towards me, bucked her hips and then curved her upper body forward so her slit caught my tip. She lowered herself forward and down, bringing her thin frame forward, pushing me onto my back as her tight grip enfolded my length, inch by inch. She rubbed my chest as I held her thighs and her waist bucked upwards and downwards, releasing and reclaiming her prize. The linoleum floor meant nothing as her hot, tight spot enclosed my flagpole to its very base, finally giving it no choice but to spill its contents into the waiting depths. But she wasn't finished there. As I continued to massage her, she continued to thrust, releasing my softened organ bit by bit as she worked her way downward, straddling my knees. I raised my knees to her pleasure, and she leaned forward while her juices slowly spilled out and moistened my legs. I once again caressed those small breasts, the suntanned arms and face. But then something began to feel odd to me. Although she had moved back up to rub her crotch on my thighs, I still felt a moist warmth down to my legs. I looked down to witness my knees encased in a massively engorged vagina, belonging not to Amelia, but to Amy! As I watched, unable to stop thrusting and moving, her pussy finished with my knees and began inching higher up my thighs. Amy, through ecstatic panting, managed to moan something.
 
"Too... synched... you're..." She seemed as if talking to Amelia herself, not to me. "But... so... amazing..." Her moans of pleasure got louder as her hips encased mine. I tried to wriggle free as my dick was taken hostage by her climbing opening, but that only accelerated her pussy's ascent. In a moment, it was all the way up to my bellybutton and inching forward with each of Amy's thrusts.
 
"Amy, you..." I tried to get out.
 
"Not me..." she gasped. "Amelia... wanted this... even then..." Soon our lips could no longer reach as she her pussy slurped up over my ribcage. I abandoned rubbing her breasts with my hands and gave myself over to stimulating her insides. Her labia gladly accepted my elbows and arms into their territory, and Amy's arousal reached its peak as her hips pressed forward and clinched tight over my shoulders. With me there, her pussy rippling tight around my neck, we paused so slightly. I took a few deep breaths, feeling the press of her flesh on all sides. She looked down at me. "You look so funny down there," she teased. "I'm not sure what happens next... Amelia..."
 
Amelia's heavy breathing could also be heard, still in sync with Amy's. But she didn't say anything. At last, Amy's hands reached down and gently guided my body the rest of the way inside of her, silently enclosing me in darkness and shared warmth. The flesh around me rippled tight, pulling me deeper and deeper into this girl within a world inside a girl...