"Are you sure?" you ask. "You could die..."
"YES!" you hear. "I've never been more sure! If I die, what better way to die? And if I live, what better way to live?"
"Wouldn't you like to live a bit first, though?"
"Dammit, if this'll kill me, it's how I want to die, and so I won't be able to think about anything else until you do it. You turned me into a damn balloon without a by-your-leave, you owe me this!"
You sigh. "All right." You put her between your breasts, hands pressing her against what would be your ribs, elbows pressing your breasts inward. With you barely conscious of it, the latex of your hands and upper torso has gotten thicker, sturdier. You hear her moan, and press harder, the latex becoming stronger, as the balloon that was Megan feels more and more stretched, and the moan becomes stronger. At once - "POP!" - silence. No climax, just build, and suddenly, like turning off a radio, no more moan. No more Megan.
As the hard pads return to the consistency of the rest of your latex body, you find yourself weirdly at peace with having taken a life, assuming that is what you've done. If it isn't, with these scraps of rubber in your hands, it certainly feels like it. The horror you felt at the prospect of this woman's destruction is gone now that it's a fait accompli; her life and death both feel like dusty old history, warranting no more emotional investment than those of Cicero. You let the scraps of "her" fall to the floor.
Down there in the catacombs of latex, where all her little toys lie in tatters, part of you feels to be where "she" belongs, where she really wanted to be. Even if it's possible to resurrect her, you shouldn't even try. If you'll never know, and she'll never know, why should either of you care?
Then again, you did imply that you'd give it a shot. At the very least, she seemed to be going into it assuming you would. Hell, part of the turn-on seemed to be rolling the dice on the universe. Although, since it's your powers she was gambling on, why not your trustworthiness as well?
You stare at the scraps of latex for some time making your decision.