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I turned the key and slowly opened the door. I had to make sure it was as quiet as a mouse. My sister, being a heavy sleeper, would usually not wake up until her alarm rang. It was a quarter to six. Her alarm would go off in a little over an hour.
I closed the door behind me. I took off my clothes as quietly as I could, then laid them neatly on the floor.
It had been some time since I had gone commando, and I could already feel the excitement rush through my blood. The thought of doing this - especially to my younger, 18-year-old sister - while she slept was beyond exhilarating.
I stood there for a second. The only thing I could hear was my sister's breathing as she lay sound asleep. My heart began racing. This was it, I was going to fuck my sister - and impregnate her!
I stared at my naked sister's body, drinking in her beauty. She was sleeping on her back so I could see her breasts and stomach. She looked so peaceful and with her long, silky legs and smooth skin. Her breasts looked delicious and her hair looked amazing even as she lay in bed with it slightly messy from tossing and turning.
I was lucky to have such an attractive, gorgeous sister such as Kate. With silky, fiery red locks and pale skin, my sister was the definition of beauty and grace. Her eyes, as bright blue and clear as the Caribbean, and her smile could make any man fall to her knees.
I slowly crept forward - dick in hand - as I imagined all the things I would do to her like suck and squeeze her tits, and, of course, fuck the shit out of her.
The more I thought about her, the harder my cock got. God, I couldn't wait to stick my dick inside her tight hole and fuck the shit out of her.
I knew she was fertile because I'd bought some fertility drugs for her online, which she'd been taking as vitamin supplements for the past few weeks. She thought I was such a helpful brother.
Little did she know that I was a calculating pervert that only wanted in her panties and would do anything to have her. Of course she didn't have to know that. She could live her life and I could live mine, knowing I had knocked up my hot, younger sister and had her carry and birth my baby.
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