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Includes: Succubus transformation: eyes, nails, fangs, voice, sex, massive cum shot

I come into my step-brother's room. He skipped my Birthday dinner, I turned 18 years old today he knows how important this birthday is to me. I have had a little crush on my step-brother for a couple years now, and always pester him to show me how to kiss. He told me last year that he would do anything with me on my 18th birthday if I stopped being so flirty with him. I know he is a good guy, the type to...

Click here for HD version

Includes: Succubus transformation: eyes, nails, fangs, voice, sex, massive cum shot

I come into my step-brother's room. He skipped my Birthday dinner, I turned 18 years old today he knows how important this birthday is to me. I have had a little crush on my step-brother for a couple years now, and always pester him to show me how to kiss. He told me last year that he would do anything with me on my 18th birthday if I stopped being so flirty with him. I know he is a good guy, the type to play by society's rules, so I give him what he wants. He must know I remember, and he's been avoiding me all day.

I remind him, as I teasingly brush against his pajama pants, of his promise to me. He asks me to leave and let him think about it. I leave feeling rejected. I sit on my bed and start to feel upset, but then I remember what I am capable of.

I've been hiding a secret. My spirit is capable of leaving my body. Last night my mortal body passed on, and I've transforming into an evil version of myself, half devil and half woman. My spirit carries out all of my deepest fantasies and desires, no matter how dark they are. I remember the evil that came into me night before.

I started to sweat, and the nightmare began, my mortal mind winces at the evil pictures that came into my brain. I awake from my nightmare and my blue eyes rolled in the back of my head, the color is drained from my eyes, and only pupils appear. My mouth stretched open with pain as my teeth grow into jagged fangs. I arched my head back as my two horn-shaped bones emerge from my forehead. I stretched out my newly immortal body and clenched my bed with my fingernails, as my pink fingernails grew into jagged red claws.

My body behaves as predicted tonight, just as last night. I sit up from the shell that is my body and enter my step-brother's room. I slam the door shut without even using my hands. My step-brother starts to wake. I pass in front of his floor mirror, and I have no reflection. He is frightened of me, and I use my moral step-sister voice to reassure him everything will be ok, besides, "you're just dreaming," I lie.

I know he has had dreams about having sex with me. I read his mind and repeat his fantasies. His eyes widen in disbelief. I take off his pajama pants. I begin to suck him with my hot, wet mouth. My fangs teasingly nibble on his shaft. I want to fuck him. I get on top and ease my pussy onto him. My body starts to turn very warm, I begin to sweat. My voice drops into a demonic tone. He is afraid but he can't stop fucking me. I order him to fuck me in the way that I choose and he cums all over me. Ropes of cum all over my breasts and pussy.

He wakes up and his sweet step-sister, with all her mortal appearances, is sitting in front of him stoking his cum covered cock. "I knew you would keep your promise," she purrs.

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