I first saw Natalie from my bedroom window.
She was short and petite with wispy light brown hair and a curvy figure. The afternoon sunlight set a rosy glow across pale, unblemished skin. Long lashes blinked over large blue eyes as she glanced around uneasily.
When my father emerged from the house, all squared shoulders, plaid shirt and faded jeans, Natalie gave him a brilliant smile. It enraptured me instantly—shy and innocent, with a hint of mischievousness hidden beneath.
She shifted a beaten-up backpack off her shoulder, the strap catching on her loose pink T-shirt, pulling it briefly taut across pert breasts. It took my breath away, and I felt my mouth drop open a little. Then her legs caught my attention. Khaki shorts came mid-way down creamy thighs. Her calves were smooth and toned like a runners. I imagined those legs spread before me, and flushed.
Her pure, natural beauty caused a delicious stirring inside me. She was young and vibrant in a way none of the girls in the neighborhood had ever been. Guilt soon followed. Gorgeous she might be, but she was also my new step-sister.
Doris—she insisted I use her first name and not try to force an awkward 'mom'—stepped out of their dingy Honda and introduced Natalie to my father with a wide grin, her blonde curly hair bouncing in the afternoon breeze. I couldn't hear what they said to one another, but my father gave Natalie a brief hug. A bolt of jealousy shot through me. I wanted to hug her, but not the way my father had.
My new step-mother had met my widowed father at a real estate convention two months earlier, and their romance had been a whirlwind. Four weeks after they met, while I was still away finishing my sophomore year at college, they married in a private ceremony. It had been a spontaneous thing, I was told, and I couldn't get away from my studies. Only after they tied the knot did I meet my new step-mother. She seemed nice. A bit of a ditz, but a friendly, harmless one. Her effect on my father was profound, however. Life bloomed in his eyes once again and the aura of doom that he cultivated so fiercely melted away to nothing. Because of this, I let go of my initial annoyance at the speed at which Doris had attached herself to my dad.
When I discovered she was moving in with us, and was bringing along a daughter from a previous marriage, I groaned to myself. I was used to being an only-child and having the run of the place during the summers while my father was off on his business trips. I wasn't real thrilled at being paired with a stuck-up hag of a step-sister who would, no doubt, be obnoxious and demanding. Even her name, Natalie, sounded self-absorbed in a pretentious hipster way.
I couldn't have been more wrong. When I went down to introduce myself, her disposition was sunny. She hugged me enthusiastically, pressing her breasts against my chest, and called me 'big brother'. I flushed, loving the sensation, but did my best to hide it. The four of us re-entered the house and made small talk, but my eyes kept roaming over Natalie's body and my thoughts were not brotherly.
I learned Natalie had graduated high school, and had been working at her father's stationary store for the past year to save up money for college. Doris snorted in derision at the mention of her ex-husband's card shop. By contrast, Natalie turned out to be sweetness and light in every way possible. Utterly doe-eyed and optimistic about everything, I found myself gravitating toward her because she was so ... happy.
Natalie got the guest bedroom as her own, the room next to mine, and within the day I heard pop music playing through the walls. Later that night, I invited her into my room to play X-Box with me because I couldn't think of anything else to do with her. She accepted enthusiastically, but after dinner got caught up in a phone conversation with a girlfriend or three and I gave up hope of spending some time with her. Through my closet I heard her babbling on the phone, sending out little giggles that made my cock stiffen.
At around ten o'clock I couldn't take it anymore. I closed and locked the door to my room, laid myself out on the carpet next to my closet, listened to her, and masturbated slowly and rhythmically to her melodic voice. I felt dirty doing it, and that only excited me more. Afterwards, I cleaned up, unlocked my bedroom door, and got ready for bed. By the time I emerged from the bathroom, my teeth brushed, Natalie sat cross-legged on my bed. She wore a soft cotton nightshirt that hugged her breasts ... and nothing else that I could see. I assumed she wore panties, but the nightshirt was just long enough to cover that area and leave it to my imagination. Her smooth thighs and dainty feet, with their pink painted toe-nails, were incredibly distracting.
"Sorry," she said, and smiled sweetly at me. "I got stuck on the phone. Still want to play?"
Play? With her? Oh God, yes, but not in the way she meant.
I cleared my throat, let my mouth drop open a little, and then forced myself to speak. "Sure. Take a look through my games and choose one."
"Cool." She hopped off my bed giving me a tantalizing view of her toned thighs. But what greeted me next was far more mesmerizing. She bent over at the waist, bending only slightly at the knees to reach down to the pile of X-Box game boxes. Her panty clad buttocks peeked at me from beneath her nightshirt. I stared at her, knowing her pussy was just on the other side of that thin lacy material. She had to know she was doing this to me. She had to. No girl was that clueless.
She chose a race car game, her favorite she said, and handed me the second controller. I sat very close to her on the bed, even though it wasn't strictly necessary. She smelled like flowers and I felt her body heat through the distance between us. I stole glances at her crossed legs, imagining my lips roaming over them. After a particularly close race, she raised her arms in celebration and gave me a triumphant grin. I smiled back, and we started again on a different track. This time, though, when I glanced down, her nightshirt had slid up her thigh revealing the slimmest peek at her crotch. My mind went fuzzy with lust and I put a pillow in my lap, supposedly to prop up my elbows.
