by samslam 11/23/06
I've been spying on my sister for about two months; watching her change her clothes through her bedroom window. I never thought I'd take it any farther than just spying. She is my sister, after all. To me it's just a good way to see some tits, ass and pussy on a regular basis.
My sister and I are twins. We get along great, not like some brothers and sisters. Our dad is in the Navy and we've never lived anywhere long enough to develop close friendships with other kids, so we've become each other's best friend by default. We're both pretty smart and have tested in the top percentile of our classes academically. We do just about everything together. We go to the movies, hang out at the mall, sometimes we even double date. I also think we have a special connection because we're twins.
During our senior year in high school, right after we turned 18, we moved to San Diego and our dad shipped out for a six-month tour of duty aboard a destroyer. Mom works as a paralegal, for a law firm downtown, so we are home by ourselves after school every day. This is our first house with a pool and that's where my sister and I spend most of our time.
I've noticed my sister's body developing over the last couple of years, but I was not prepared for the feast my eyes got when my sexy, twin sister started spending most of her time in a skimpy swimsuit. She's blossomed into a size 34B and the sexy curves of her tits, visible around the minimal material of her swimsuit top, captivate me. Her firm, young ass rounds out the bottoms of her swimsuit in a way that would make any guy look twice. Being around my sister, in our swimsuits every day, is getting to me. I find that I can't keep my eyes, or my mind, off of her firm, young tits or her cute little ass.
We are playing in our backyard pool one afternoon, dunking each other and generally fooling around, when my sister climbs her way up my body and tries to dunk me. She seems oblivious to the amount of bare skin contact between us, but my cock certainly isn't. I have to maneuver myself sideways so she won't feel my hard-on.
Her swimsuit top is stretched tightly across her breasts and, when it gets wet, her nipples make pretty obvious bumps in the thin material. Pushing on my shoulders, she lifts herself out of the water, trying to dunk me. At 18 I've had a few girlfriends, but I've never seen a sight as sexy as my sister's tanned tits two inches from my face. I desperately want to see them uncovered.
We finish in the pool and my sister goes in the house to change. My cock hardens as I watch her tight ass wiggle across the patio toward the sliding glass door. I can't believe how badly I want to see her naked body. I tell her I'm going to check the filtration system and will be right in.
Instead, I walk around the side of the house to my sister's bedroom window. This side of our house has a covered walkway with lots of bushes. I position myself to see in her window, without her or our nosy neighbors seeing me. I look for an opening in her blinds so I can watch her change, but the way the blinds are positioned, I can only see the ceiling. I give up (for that day) and go in to change.
The next day while my sister is watching TV in the family room, I sneak into her room and adjust her blinds, leaving about an inch and a half gap between the bottom of the blind and the windowsill. After changing into my swimsuit, I head out toward the pool.
"Hey Lisa, I'm going in the pool. Want to go?" I ask my sister casually as I walk through the family room and out the sliding glass door.
"Sure, I'll be there in a sec," she says, getting up from the couch and turning off the TV.
That's my cue. Around the house I go. I get to her window just in time to see her entering her bedroom. She is pulling her shirt up as she closes the door. I stand there mesmerized, as she tosses the shirt on her bed and begins taking off her bra. My cock jumps, creating a bulge in my swimsuit, when I get my first look at her teen sized mounds. I stare at them, enraptured by her inch and a half areolas and little pink nipples. But the real treat is watching her unzip her shorts and slide them down her tan legs.
My sister is average height, with a flat stomach, and a body that curves in all the right places. She turns from the window while taking her shorts off and I'm looking at her panty-clad ass, as she bends over. I start rubbing my cock through my swimsuit, to relieve some of the pressure, as she hooks her thumbs in the waistband of her panties and slides them down.
My god! Her ass is spectacular. Her firm, young cheeks curve just enough to make you want to grab a handful and plant kisses all over them. Bent over like that, a few blonde pubic hairs and just a hint of her pussy lips are visible between her legs. I can't wait for her to turn around so I can see the rest of her. But, instead, as I'm admiring her ass, she slips her swimsuit bottom over her feet and pulls it up. I get one last peek at her ass, before she grabs the elastic on the sides of her suit and pulls them down to cover her cute round cheeks. Hooking her swimsuit top, she turns it around so the hook is in the back and the cups are in the front.
I belatedly notice that she's standing in front of her dresser, which has a big mirror over it. Through the mirror, I get one more look at her nipple-tipped mounds as she slips her arms in the straps, pulls her swim suit top up over her chest, and reaches inside each cup to adjust her tits. She checks herself in the mirror and opens her bedroom door.
Shit! I better get in the pool fast. I've been so engrossed in watching her change that I didn't think about what would happen if she saw me coming around the side of the house and I wasn't even wet yet. Speaking of cumming around the side of the house; that was going to have to wait. I'm still hard as I hit the pool at a run and swim to the deep end, treading water, as she comes out of the house.
"How's the water?"
"Great, come on in!" I yell, hoping the cool water will relieve me of my uncomfortable, and obvious condition.
We stay in the pool for about an hour, fooling around like we usually do. If my sister notices anything different, in the way I'm acting or looking at her, she doesn't let on. I'm trying to act normal, but every time her tits get close to me, I can't help but think about her pink nipples sticking out from her firm young breasts. When she sits on the edge of the pool, dangling her legs and pushing the water sideways with her foot, I stare at the crotch of her swimsuit, imagining how her pussy looks. Fortunately, I don't have to imagine for very long.
When we're finished, I again make an excuse about checking the filter and run around to the side of the house. I wait a while and start getting nervous that maybe my sister is coming back outside. I'm just about to abandon my position when she walks into her bedroom with a towel wrapped around her. She's taken her wet swimsuit off in the bathroom and is now dropping the towel, as she closes her bedroom door. My eyes are glued to her pussy and what a sight! It isn't the first pussy I've ever seen, but the excitement of seeing my twin sister's pussy, makes my cock spring to life.
She has a nice v-shaped patch of blonde hair that almost covers her pussy lips, which are protruding slightly downward between her legs. I'm rubbing my cock like crazy and trying to take it all in, remembering how fast she changed earlier. But I'm in for a wonderful surprise. My sister puts on lotion after she swims - before she gets dressed.
I watch her standing naked, in front of the mirror, squeezing lotion onto her hands. She rubs her hands together and starts massaging lotion onto her arms and shoulders. I love the way her firm tits move, pointing her pink nipples right at the mirror, when she reaches up to rub lotion on her shoulders. Pulling my hard cock out of my swimsuit, I begin seriously stroking it, as she rubs lotion across her stomach.
Beginning just below her navel, she rubs the lotion up over her flat stomach and her ribs. Lifting each breast, one at a time, she gently squeezes it, as she rubs the lotion in. It looks like she lingers a little on her nipples, and I watch them harden, as she slides her lotion covered hands across them. Then, to my surprise, she turns around and walks toward the window. Her bed is just under the window, but the way I've positioned the blinds, I can't see it very well. It doesn't matter, because what she does next, makes me shoot my load all over the shrubbery.
When she gets close to the bed, she squeezes more lotion onto her hand, lifts her right foot up on the edge of the bed and rubs lotion on her leg. Fuck! I can't believe my luck! From my vantage point outside her window, looking under the blinds, I'm staring right into her fucking pussy! As she shifts her leg around, rubbing in the lotion, her pussy looks like it has a life of its own. I watch her pussy lips opening and closing, moving her patch of blonde hair back and forth as she rubs lotion up and down her legs.
I'm about four feet away from the most amazing sight I've ever seen. My cock is rock hard and I'm pumping it furiously. As she leans forward to rub lotion on her ankles, her tits hang down like cones and her nipples are pointing straight down toward her bed. When she finishes with her left leg and is lifting her right leg onto the bed, I can't take it any longer and shoot my load on the ground and the surrounding shrubbery. I finish watching her rub the lotion on her leg and when she starts to get dressed, I run into the house and into my bedroom to change clothes.
Over the next two months, I shoot a lot of cum outside her window. I make a few strategic adjustments to her blinds and even bring out the digital camcorder a few times. Watching a video doesn't come close to the live action, and I know I can see her change anytime, so I erase the video to avoid getting caught. I think I can explain being on the side of the house, but if I was ever caught with a video of my naked sister, I think my dad would kill me. I've occasionally watched her get dressed to go out, but nothing compares to watching her come out of the swimming pool and rubbing on lotion - and she does it every time.
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