My Sister & Me Pt. 1

Note : This story is completely fictional!

I am 18 years old, and my sister is 18. I've sometimes thought about her; in the shower, naked, etc. But now it happens for real. My other siblings are off at college, so when our parents leave we have the house to ourselves.

One night, when my parents were downstairs, I was pleasuring myself in bed. The door was closed, and this was one of the nights where I was thinking about my sister. As I stroked my dick up and down, I didn't hear my sister upstairs. It was a complete surprise to me when she opened the door (we don't have locks). My sister looks amazing, even though a little chubby, she has amazing boobs, long, light brown hair, and a great ass. And not to be bragging, but I have a pretty large piece myself.

"Hey John, do you-" And she stopped. We stared at each other for a second, then I scrambled to pull my pants up, and she said something quickly and ran out, closing the door. My face was burning, and I sat there stupidly for a couple of minutes, then grabbed a book and started to read.

About half an hour later, I hear my parents watching TV as they finish dinner. I continue reading and hear a knock at my door. I say come in, and my sister walks in nervously. I put my book down and she sits at the end of my bed, biting her lip. God, she looked cute.

"John, sorry for barging in when you were.." She said, and stopped awkwardly.

"Yeah.." I say, and put the book down.

"I know this might sound really weird but.. umm.. I couldn't stop thinking about it. You have a big piece.." She smiled a little. "It got me a little wet." We stared at each other awkwardly, then she got up and went for the door. I jumped up.

"Kate, wait." She turns to me, and before she knows it i grab her ass with both my hands, and lay a long, passionate kiss on her. She's only wearing mesh shorts and a t-shirt, no underwear, so I can feel her nipples touch my chest and my boner lift up into her crotch. She touches my head as we kiss, and I back up and fall on the bed, us still kissing. I flip her over so I'm on top, and hold her head with one hand, slowly caress her side with the other. I start at the back of her knee and stroke up and down, getting higher and higher. I get to the bottom of her shirt, and reach my hand inside. Just as I touch the side of her breast, we hear the bottom of the stairs creak. We stop kissing and look at each other, then we tear apart, her going over to my computer, me diving under the covers and picking up my book. My dad pops his head in.

"Hey guys." He says, as we hear our mother go down the hall to their bedroom. "Forgot to tell you! We know you have this week off, so we're going away for a couple of days while you're home. Hope that's fine."

We both let out a murmur of consent, not picking our heads up from what we are doing. He says good night, then leaves the room. My sister looks over at me, and gives me a wink. I couldn't wait for them to leave.

The next morning our parents stuff was packed, the car to pick them up was on it's way, and we were giving them hugs goodbye. We said our last goodbyes and they stepped out and closed the door. My sister turns to head into the kitchen, and I give her a playful smack on the ass. She hops in surprise and runs into the kitchen, and leans on the counter.

"What do you want to do?" She says, and crosses her arms.

"This." I say, and lift her up onto the counter then kiss her. We hold the kiss for a full minute, then separate.

"Getting a little frisky?" She says, and hops down from the counter. She goes downstairs to watch TV, and I make lunch for myself. When I'm done I clean up and go down stairs. My sister is sitting down there with just her underwear on, and has her hand down her panties, watching a porno. Gotta love her. I take off my shirt so I'm just in gym shorts and sit down next to her. I put my arm around her, and she stops masturbating. She takes that hand and slowly moves it to my shorts. First she rubs my dick through my shorts, until she feels it turn rock hard, then she pulls the shorts down and strokes it. As she does this, I take off her bra, a shoulder strap at a time, until it falls down to her elbows. Her breasts are big and full. I lie down on the couch and lift her up onto me, so she's sitting on my chest and stomach. I slide her panties down to her feet, and slip those off as she takes her bra off. She continues to stroke my penis as I start grip her breasts. I hold on in each hand, and work on her nipples with my fingers. They start to perk up, so I continue to do that with one hand, and move my hand down to her cunt with the other. She immediately moans as I press two fingers into her cunt, and starts to work on the head of my penis. I moan too and work harder on her cunt. Finally I can't take it anymore, and start to yell.

"I'm gonna cummm!" The white juice squirts out just as she orgasms on my chest, and she lies down on me, covered in my cum. I continue to caress her boobs, and kiss her neck. She rolls over and gets up.

"I'm going to take a shower. Come up if you're not.. empty." She winks at me and runs up the stairs. I clean myself off, and walk my way upstairs. I hear the water going, so I open the door quietly and sneak in. I pull back the cover, and she has her back to me. I step in silently, walk up behind her and bring my arms forward and grab both of her breasts with my hands. I kiss her neck, and my boner starts to come back. She feels it press up into her ass, and bring her hand down to stroke it. I bring one of my hands down, grasp my piece, and thrust it up her cunt. She let's out a moan and feels the top of her cunt. We walk forward together to the wall, until she's against the wall, her breasts pressed against it. I grip her hips, and start to pump her pussy, back and forth. she presses her hands on the wall and moans deeply. I reach one of my hands over and pull up the button on the faucet, so the tub starts to fill with water. I let it get to shin level, then turn off the water. I pull out of my beautiful sister, and start to move my dick up and down her ass crack. We do this for a couple of minutes, her squeezing her breasts, until i step back and sit down at the end of the tub, my dick and balls just higher then the water level. My sister turns around and sits on her knees in front of the faucet.

"I can't believe we're doing this. But it's so.. good." At the word 'good', she gripped my dick and slid forward on her knees. I put my arms on the side of the tub and put my head back as she places her mouth on my pulsing dick. I let out a moan and put one of my hands forward, past her back, and start to finger her asshole. I smack her ass a couple of times, until I'm about to explode.

"Shitttt!" I explode into her mouth, and she takes it all. She swallows, and turns around and falls on me, between my chest and left arm. We lay like this for an hour or so, her gently stroking my piece gently.

We get out eventually, and dry off. Since no one is home, we walk around the house naked, touching each others parts and masturbating openly. By nightfall, we climb up to the attic, which is the guest bedroom. It's a king size, and plenty of room for us to have some fun. We make love until we fall asleep, me spooning her in my arms, my cock in her asscrack.