Absolutely loved the last story about the girl slowly outgrowing her containment cell. How about a research subject being held "captive" by a scientist, even as she grows both smarter than he can comprehend and larger than he can contain?
"Did you figure it out yet, Dr. Altus? Because I did. I know exactly why your little serum is causing both runaway anatomical growth and exponentially increased cognitive plasticity. Don't worry! I didn't simply intuit the answer out of thin air. I'm not that smart! Not yet, anyway. Over the last week, I've caught glimpses of your notes on your little clipboard and I managed to piece enough together to work through the rest of it myself. Don't be upset! Try not to be too hard on yourself. The old me, the one you tricked into signing up for your 'experimental research' never would have been able to figure it out. The answer didn't become excruciatingly obvious to me until I reached a level of dimensional thinking beyond which you could only dimly comprehend. Besides, I didn't have an endlessly growing giantess to distract me. Don't be shy, doctor! How could I possibly be upset that you're glancing at my breasts when they're each larger than your entire apartment? You're merely human! I'm surprised, though, with the amount of time you've spent—shall we say—'observing their growth', that you haven't noticed it. The harmonic pattern? The inverse resonance with the protease— Ah! Nope, sorry, you said you didn't want any hints! Your wish is my command, my little doctor. And, truth be told, I wouldn't want to hurry the process too much anyway. I love watching you scurry about down there, scratching your head, running the actuarial tables again and again and again to see how long before I'm too big for your research lab. We both know time is running out. The good news for you, though, is that my curiosity won't allow me to escape. I need to watch the scientist who gave me this astronomical, incredible gift figure out how you managed to do it. If I wanted to, I could disable the security system in a heartbeat. I've had the whole schematic mapped out in my mind for nearly three weeks now. If I wanted to leave, I could. At any time. But I'm having so much fun playing with you, doctor. Maybe, if you'd like, I could let you have some fun playing with me? Oh, I've never seen a scientist blush so hard before! That'll be your reward. Figure out where you went wrong, and I'll let you have all kinds of fun with me. But you better hurry up, doctor. Every day that passes and I break every bell curve you can think of even further."
