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by Oswald Author IconMail Icon
Rated: 18+ · Interactive · Erotica · #2298686
Your Sister begins taking experimental growth pills that cause her to treat you different
This choice: Personality shift  •  Go Back...
Chapter #3

Personality shift

    by: Neon Author IconMail Icon
"Molly, this is too dangerous!" I exclaim. "These drugs are untested and could be risky. You've already had 4! That's far too many!" "Please, please Molly. Don't take anymore!"

But she grabs the bottle from me and swallows another pill right in front of my face. "I'm going to look like a supermodel!" she replies, her voice filled with excitement. "It will be worth the risk!"Molly's breasts begin to swell noticeably, her shirt tight and clinging to her body. "I can feel them growing!" she exclaims, her voice muffled due to the growing chest. "It's working!" I try to stop her from taking another, but I am not strong enough. In minutes her chest has tripled in size. "Look at me!" she cries, her face glowing. "You can't deny I'm getting prettier." My mouth has dropped in shock.Molly's hips get wider and wider as she grows larger and larger. She is so tall now that I can't even see her face. She towers over me. "See what I can do?" she asks, her voice booming down from her now massive size. She has the appearance of a goddess now. "You can't deny I look amazing." And she's right-- she looks stunning! But I am scared, both of her and for her. "Molly, please, you can't keep growing!" "Why not?" Molly replies smugly, her hands resting on the hips that are now bigger than most doors. "I look better this way." "But Molly, you're going to keep growing, past seven feet, past eight-- what if you never stop?" I plead. She seems unconcerned. Instead, she smiles and pats me on the head, treating me like a pet. "Silly boy. I can stop any time I want. But I want you to answer me a question."What question?" I ask, trying to keep my voice from shaking. I don't want to admit it, but I am scared of Molly now. She looks down at me with deep, golden eyes-- like a lioness that just caught prey. "Do you like me this way?" She asks, a smile on her beautiful lips. I swallow. "Y-yes... " I mutter.Do you like it when your big sister is bigger then you?"Yes..." I manage to stammer out, my body trembling in fear. And my words are honest. I've never seen a girl so perfect as Molly is right now-- tall, strong, and gorgeous. I try to hide it, but I am in awe of her. Her massive hands caress my body as she holds me, and her voice booms as she speaks. I am powerless before the strength of her beauty."Thank you little bro~. I'll tell you what, if you get me some more of these pills, I'll show you my gratitude with this new body" Molly says with a winkI try to reply, my voice quaking like an immature boy. But I only manage to stammer out, "Y-you will?" Molly replies with a flirtatious smile. "You know that I'll do anything you ask for." And then she lifts me up, holding me in her arms as though I were a baby. I feel so small, so tiny, like she could crush me with just a moment's carelessness. But she holds me close and says, "I promise I will be gentle."Anything?" I ask, my heart pounding from fear but also from excitement. Molly gives me a wink, then kisses my cheek softly. "Anything." And now I am overcome by desire. With her strength, she could do anything she wanted to me. She could do anything with me. And now, after being held by her like I was made of glass, a helpless infant in her massive hands... there is a fire burning behind my eyes.
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