While searching through my Grandparents attic my sister and I came across my Grandfather's old journal. What we found in it shocked us... and turned us on.

 I parked the car just as the movie was about to play. These drive in theaters were amazing. Little sis wanted to see a movie, so I brought her to see a replay of Casablanca. We settled in and tuned the radio to the right station. The lights went down and the movie rolled onto the screen.

 All throughout the movie we noticed different kids our age making out. What if their parents saw them? I thought as the movie played on. Little sis looked great in her dress. She was the perfect little angel. All the fellows at school would eye her all the time. Every time they did I would tell them to back away. They mocked me, asking if I had a crush on her or something.

 Near the end of the movie, the sexual tension had risen to nearly unbearable levels. I had always seen my sister as a woman, not my sister. The way the moonlight hit her that night made skin glow, and her eyes sparkle. She seemed to have picked up on the tension too, jokingly saying, "Its too bad brothers can't kiss their sister. I feel like we're missing out almost."

 I looked her in the eyes and quoted Humphrey Bogart saying, "there's always Paris."

 She giggled as I leaned over slowly and pecked her on the lips. Quickly I pulled back and let out a nervous cough. I looked over after a minute and saw her face was flushed red. Either she was really angry, or blushing a lot. I quickly got my answer as she turned her head and smacked me across the cheek.

 "What was that for?" I asked, knowing the answer.

 "That's for pulling away," she said, "and THIS is for being brave." She leaned in and pressed her soft lips tightly against mine. Her kisses were sweeter than anything I had ever tasted before. I placed my hand on the back of her neck as the kiss carried on. The longer the kiss went on the more heated it got. After a while I could feel her tongue pressed to my lips. I opened my mouth and gladly let her in, pushing my tongue into hers, tickling the roof of her mouth.

 This must be French kissing, I thought. After our tongues danced around for a little while I had an idea. I sealed my lips around her tongue and began to suck. She giggled as I sucked slowly on her delicious tongue. It must have felt amazing, by the sound of her gentle moans.

 As people began to drive away we realized the movie was over. We broke our kiss apart, looking at each other and blushing. The drive home was long, so Ma and Pa knew we would be late.

 "They're going to be asleep when we get home anyways, so lets take a little detour," I said, with a mischievous smile on my face.

 "You want to go to lovers lane, don't you?" She knew me well enough to know what I was thinking at that point.

 I nodded my head as she bit her bottom lip, pondering what we were about to do. "Okay," was all she could say. She was blushing more than I had ever seen her blush before at this moment. Everyone knows what kids do up at lovers lane.

 We parked the car and began the ritual. It starts with a kiss. And oh what a kiss it was. She got more and more adventurous as the kissing went on. She would nibble at my bottom lip, and suck on my tongue for minutes at a time. I placed my hand on her side, tugging at her shirt.

 Louis Armstrong's rugged voice crooned out Mack the Knife as we began to move even faster. Our lips broke apart and Marge got out of the car. She was the most gorgeous girl in school, she was my sister, and she was all mine. I got out and retrieved a blanket from the trunk, spreading it out on the grass.

 There we lay, underneath the stars, and the moon, their light making everything glow with vibrant energy. Marge got on her knees, crossing her arms in front of her and lifting her shirt over her head, and gently dropping it to her side. She wasn't wearing a bra that night, almost like she knew this would happen. Her wonderful pale breasts glowed in the moon.

 "I heard my friend at school tell me about this thing she did to a boy, and I .. umm... want to try it on you. IF you don't mind," her genuine shyness caused her to stutter and blush.

 "You can do anything you want to do to me. I'm all yours, tonight, and forever!"

 She reached her hand out, undoing my belt, and unzipping my pants, sliding them down to reveal my boxers, my penis was outlined underneath them. She looked up from her position, looking for permission to go further. I put my hand on hers, and placed it on my cock, showing her that she can go on. She pulled my boxers down, letting my cock stand like a flagpole. She leaned forward, pulling my foreskin back, and kissing the tip of my penis.

 "I'm sorry if I don't do this properly...

I'll understand if you don't like it." Her modesty was incredible.

 "I'll love anything you do."

 What happened next surprised me. She removed her hand, closed her eyes, and closed her lips around the head of my cock, moving further and further down until it disappeared into her throat. I nearly came right then and there, but I didn't for some reason. She held her position for a minute, finally sliding her mouth to the tip, and back down to the base. She did this as slowly as possible, the feeling of her burning hot mouth surrounding my cock was something hard to describe.

 After about 5 minutes, she stopped and looked up at me with her innocent emerald eyes. All her prior nervousness left her, as she looked up and said, "If you don't fuck me tonight, you'll regret it. Maybe not today, maybe not tomorrow, but soon. And for the rest of your life." She giggled as I began to move.

 I took off the rest of my clothing, dropping to my knees as well, resting right in front of her. She leaned back and closed her eyes, lifting her legs in the air. Her legs were pressed tightly together, her right one bending slightly at the knee. She was getting sexier and sexier as the night dragged on. She bit her lower lip as I slowly pulled off her long, thigh high, black stockings. After they were off she put her feet to the ground, lifting them up at the toes, and arching her back. The affect this had on my mind was incredible.

 I rubbed one of her smooth, toned legs slowly, moving my head forward and kissing her inner thigh. She moaned softly and bit down on her lip a little harder. Her eyes were shut tight, moving all over the placed underneath their lids. Her dress was her uniform from school. It was gray and black flannel. I took it off after she grabbed a chunk of my hair, pulling tightly upwards. There she was, with only her red panties in the way of my most coveted jewel. She opened her eyes for a brief moment and pursed her lips together, letting out a quick, "Mhmm" as I lifted her legs into the air like before. They were tightly pressed together like before, so pulling her panties up and off took longer then her dress.

 Her back was still arched as she put her legs down and parted them just enough for me to place my cock at the entrance of her radiantly hot, dripping wet pussy. She wrapped her legs around my back and pulled me quickly into her dripping cunt. A few inches in there was some resistance, but she bit her lip hard and pulled me in deep, breaking whatever it was inside her. For a minute I stood paralyzed, as a sharp and painful look appeared across her face. Her eyes were clenched tight and she had a frown on. Her lips parted and her frown faded as she opened her eyes, "I'm okay now... you can fuck me all you want," she said breathily.

 I worked up a nice rhythm, knowing I wasn't going to last that long on my first time. She gasped and groaned, clawing at my back with her fingernails and sucking hard on my neck as I pounded away mercilessly at her pussy. A few times I could feel it clench tightly around my cock, and her body tremble underneath mine.

 "Are you okay?"

 "I'm... I'm... Cummingggggg" she gasped out as her body convulsed for the 4th time.

 It was about 8 minutes after I started and I was beyond ready to cum. "Sis, move your legs, I'm going to cum any second now," I moaned out.

 "Please cum inside me. I need it! I need you inside me! Pleaseeee," she moaned out.

She gasped as I pushed my hips to hers one last time. Wave after wave of sticky cum filled her pussy to the brim. As I pulled out I could see cum drizzle out, falling down between her soft ass cheeks. She was the very image of sexuality at this point. Her cheeks were flushed red, and a huge smile was stretched wide across her face. She kept her eyes closed and just panted, placing a hand over her forehead, giggling.

 "It's getting late. Mom and Dad may be sleeping, but they could wake up anytime. We should get going now."

 We gathered up our clothes, dropping them to the ground every time one of us would reach out and touch our swelled, sensitive areas. It took 20 minutes to get dressed in between sucking, kissing, licking, or squeezing each other. We folded the blanket and put it into the trunk of the car, taking the long way home.

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 That was the end of the journal entry. I didn't really know what to say at that point. I looked over at my sister, and she was sitting on her back the way Marge was in the story. Her arms were above her head, and her legs were in the air, the right one lowered slightly, feet and toes pointed outward. Her back was arched and her eyes were shut tight. She bit down on her lower lip and moaned, whispering my name.

End?