I awoke to the sound of my door creaking open slowly, softly so as not to alert anyone. It was dark but twilight was pouring through my window, casting a bluish hue over everything. After a moment, my eyes could focus and I saw someone approaching my bed. It was Ash, my younger sister. She had closed the door behind her, and was creeping towards me. When I stirred and turned my head to look at her, a smile crept across her face.
"Damn, I was trying to surprise you," she said very quietly.
"It is kinda late," I replied, rubbing my eyes.
Ash sauntered the last few steps up to my bed, and then bent at the waist a bit, sticking her chest out at me. She was dressed in just a thin, nearly transparent nightie, and her cleavage was made quite obvious. She looked great.
"Is it too late to play around?"
I had never turned her down before, and thankfully she had never said no to me either.
Ash and I had a very unusual relationship, but one that was a fantasy to many people I'm sure. I was nineteen now, and her eighteen, but we had been interacting sexually for years now. Ever since puberty we had begun to share similar interests and curiosities, and being close as our parents' only children, we had indulged each other in a mutual exchange.
The first time I had masturbated in front of her was a bit awkward, and perhaps more so for her, but eventually we developed a comfortable pattern. There is nothing more exciting than two very young people of opposite sexes experiencing forbidden pleasure together. We knew we weren't supposed to be doing it, but it felt so good, especially once we had lost our inhibitions and really surrendered to the taboo.
As Ash climbed onto my bed and sat cross-legged from me, I remembered the first time I touched her naked body, and the first time we had so innocently explored each other's private parts. It was an intoxicating memory.
Seeing now as she sat there that she wore no underwear, I felt a surge of energy in my loins. She was positioned like that on purpose, of course, to entice me. She often came to me in the night like this, when no one would know what we were doing. I could barely see her nearly bare genitals, which I often helped her shave. Those sessions in the shower always ended in dry humping orgasms for both of us. We loved to play in the shower.
The biggest question was if we would, plain and simple, fuck. But nothing about us was plain and simple. Part of the attraction of our game was that we weren't fucking, but just playing.
That didn't mean that we didn't get down and dirty, however. I had cum on just about every part of her body, and she was no stranger to the taste of it. Likewise, I regularly feasted on her savory juices countless times. We were lovers to every detail except the most obvious perhaps. We had made a conscious decision to hold back, to keep anything unpleasant from ruining our fun.
"Are you actually awake?" Ash said, seeing that I was lost in thought.
"Sorry," I answered. "I was distracted by your womanly charms."
She blushed, but didn't close her legs. Instead, her hand snaked under my sheets and found my penis immediately. I jumped at her touch, her soft fingers sending electricity through me.
"Ooh, it's almost hard already," she delighted. Her hand began a masturbating motion, squeezing my meat to stiffness. She loved when I wasn't quite hard, and my dick was big but still soft enough to move around and play with. With her skill, I didn't stay that way for long.
"That feels good," I sighed.
Ash smiled and withdrew her hand, just long enough to pull her nightie over her head and throw it aside. God, she looked great. Her breasts were just perfect, and I had many times covered them with sperm.
After giving me a second to take her in, she reached for my covers and pulled them back. I slept naked, for this very reason mostly.
"Do you want me to suck you off?" Ash said quite sensually, her eyes glued to my twitching manhood.
"You know I do, baby," I breathed.
With a positively devilish smile, my baby sister crouched forward and her head descended to my thighs. Her hands slid up my legs and I sat up a bit so I could watch this lovely act. Ash was as much fun to watch as she was to feel.
She knew just what I liked, which was lots of tongue. She began a series of wet kisses up and down my shaft, and then licked her way to my balls, which I kept bare for her. She loved to suck on them. I loved when she did. One time, in a fit of especially passionate play, she licked all the way down to my ass. It felt good, that was for sure, but we weren't quite there yet for stuff that lewd. I returned the favor though, that one time, and I was surprised it wasn't gross like I had expected. It made me want to fuck her there, though. I never had the courage to bring it up.
Ash had left my balls and returned to my shaft, where her tongue trailed up to my head and her lips began to open over it and close softly. She sucked on me gently, lovingly. Her tongue was working invisibly inside her mouth, giving me intense pleasure. I loved watching her suck dick, it was like I was my own porno. Her lips bobbing up and down were just as exciting as seeing her saliva leak down my veined shaft. She began to suck more earnestly, which was not typical for her. Usually she would continue her gentle ministrations until I couldn't take it anymore. But tonight she seemed eager for my cum. I had no doubt she wanted me to cum in her mouth, which was not usually as exciting for her as it was to watch it fly over her body or feel it splash onto her face. She was hungry tonight, and I would not deny her the reward for her hard work.
I put my hand gently on her head and touched her soft hair while she blew me. She looked me in the eye as I tensed up, my cock beginning to get even harder. Her tongue began a rapid flicking over the most sensitive part of me, just under the head of my penis, and I couldn't hold back the contracting of my balls and that blissful tingling feeling as things downstairs began to churn.
"God, I'm gonna cum..." I could barely breath the words as I watched my gorgeous little sister bringing me off. Just as my face grimaced in pleasured anguish, she slid her hand down to my balls and underneath them, where her index finger touched the spot just below my scrotum and above my asshole. I gave in to the intensely naughty sensation and was rewarded with a earth-shattering muscle spasm that sent semen gushing out of me in torrents. I couldn't see how much since Ash's mouth was still locked onto me, but I could feel rivers of cum being pulled out of me, sucked greedily into her mouth. The finger under my balls ventured further south just a bit, touching the top of my butthole. The thrill sent another spasm up my spine.
"Oh my god, Ash..." I said raggedly. "That was amazing!"
Ash smiled around my dick, and softly sucked her way up from the base toward the head, where her tongue lingered on the oozing discharge that still flowed there. She literally sucked the cum out of me.
"You like when I play with your butt, don't you?" she said while her finger stayed on my asshole.
I didn't really know how I felt about it, but I knew I wanted to play with hers now.
"Why don't we trade places?" I suggested.
Immediately Ash spun around and presented her backside to me, sticking her luscious ass in the air. I moved forward and put my hands on her cheeks, squeezing them and spreading them. She moaned a bit, feeling excited at being this exposed and vulnerable. When I pulled her cheeks apart, her little pucker opened a bit, which kinda excited me. It was sexy for some reason, like it was inviting me to stick my finger inside.
"You wanna touch it, don't you?" she asked.
I didn't say anything, I simply wet my finger in her pussy first, then in my mouth, and then pressed my fingertip into her ass.
She squirmed a bit, but I knew her reactions well enough to know that she was liking this. She always liked when we tried new things.
My finger slid right in, and I buried it. When I moved it around inside her, she moaned very low. My other hand found her pussy and I began a stroking motion over her clit. This drove her wild while I was playing with her ass, and she started pawing at her own tits.
"You like my ass, huh?" she breathed. "You like to be naughty, sticking things inside your sister's fucking butthole..."
I was starting to get dizzy with arousal, and my dick was rock hard again. There was cum smeared on my tip, and that gave me an idea.
"I want to stick my fucking cock up your butt," I said, to which she groaned loudly. "But first I need it to be nice and wet."
Immediately Ash spit crudely into her hand and reached back to smear it around my dick. I worked another finger into her tight hole, to get her ready for something bigger than my finger. Her breathing was very heavy, and her pussy was steaming. I wanted to fuck her right then, but I knew her ass was safer.
I knelt right up behind her, and she practically cried out in anticipation. She really wanted this! I aimed my penis down at her pink asshole, touching it with just the tip at first until she squirmed. Then I knew she was ready.
The feel of her tight, tight little pink hole squeezing around my dick head was indescribable. She was so tight that she pushed me right back out. I groaned at the sensation, and pushed it back in. I was plenty wet, but I went nice and slow for her sake. Every inch or so, she would clamp down on me and then relax again. The feel of her ass doing that nearly sent me over the edge, but I kept going steady. There was no way I was gonna blow this.
Finally, I was as far in as I could go. When Ash felt me bottom out against her ass, she grunted and squeezed her butt as tight as she could.
"Are you trying to make me cum?" I warned her.
"It helps with the pain to do this," she replied, still clenching me as tight as her butt would allow.
"Does it hurt much?"
She shook her head. "No, after a while it just feels good."
I took that as my cue and began moving. I slid my dick out just a bit, watching her asshole drag along my cock. It was sexy as hell! She was nice and clean too, which made it nice. She began fingering herself, something I loved seeing, while I fucked her butt. I couldn't feel much past the tight ring of her ass, but I loved going all the way in. Each time I did, she grunted and groaned so divinely, it made me do it faster. I was really having anal sex! With my sister! It was unbelievable.
She came very quickly, gasping and writhing under me. To my delight, she squirted a stream of clear liquid onto my bed, something we had tried unsuccessfully before to accomplish. I was proud to give her such a strong orgasm. Now I could let myself finish, since her ass was surely not used to this much use.
She was so tight I wasn't going to have any problem cumming again so soon. I held her butt and slammed it onto my dick hard, making her yelp softly. I knew I wasn't hurting her, but the sound made me surge with pleasure. I fucked her ass hard, making her my little fuck doll just for that moment, and then suddenly I was exploding inside her ass.
It was fantastic, letting myself go inside her bowels. She clenched onto me as I shot cum deep in her butt, and she quivered in a kind of aftershock of her own orgasm. I was groaning and grunting in an almost pleading way, like an animal begging. It felt so fucking good! It was the best orgasm I ever felt.
After, Ash looked back at me and smiled.
"You always stay hard after your second one," she said.
That was her way of saying I could stay in her ass, and let the moment linger as long as possible. I caressed her cheeks and her back, while she absently fingered herself. She actually brought herself off like that again, slowly and softly. I moved a bit inside her ass.
"Are you sore now?"
"Mmm, not yet," she sighed contentedly. "It just feels so fucking good when you're inside there!"
I smiled and drank in the sight of her, my gorgeous sister who I had just defiled in a most delicious way. I was the luckiest guy in the world...