I was home from college and my summer job didn�t start for another week, so I was enjoying myself by just goofing off for a few days. This particular late morning, I was drinking a cup of coffee while lounging at my computer desk in a pair of soccer shorts. I had been reading email from roommates who had dispersed to various parts of the country and reading posts on a couple of screaming political boards, and then I paid a visit to one of my favorite porn sites, one that frequently posted free video clips as much as a couple of minutes long. There was one in particular that got my attention, of a young-looking girl on hands and knees being rammed from both ends by a couple of large cocks, and I pushed my shorts down to allow my own expanding organ to escape to the open air. Mom, long a divorcee, was out of town on business, and my sister was still in bed after returning from a sleep-over somewhere.

So I was stroking my penis meditatively while contemplating the activity of the three people on the screen, when I heard my bedroom door open quite unexpectedly behind me. My hand paused in its up-and-down travels.

"Hey, Tom, do you want some---"

I turned my head and peered back over my shoulder. Emily was standing in the doorway, one hand on the knob and the other holding up a wooden spoon that carried a faint aroma of batter. She was a cute, vivacious fifteen and I knew I was lucky in that we had always gotten along pretty well. In fact, there had been a time during my star soccer days in high school when she had practically worshipped me.

I blinked as I took in the bare feet with bright red toenails, the short-shorts, the high-cropped tee-shirt, and the long, reddish-blonde braid draped over one shoulder. My cock surprised me by twitching emphatically in my grip.

Emily blinked back, gazing at my somewhat hunched posture with curiosity. "I had a craving for pancakes, and . . ." She stepped farther into the room, trying to see what I was half-concealing in my lap. "Tom, what are you---"

Without really thinking what I was doing, I swiveled my chair around so she could see plainly my shorts around my calves and my thick, increasingly hard cock with my hand wrapped around it. "What do you think I�m doing?" I asked with a wry smile. I was a little embarrassed at being caught, so I guess I was trying to embarrass her back.

My little sister�s eyes flicked from my cock to my face and back several times. Her cheeks turned pink -- with that strawberry blonde hair, she blushes easily -- and she swallowed so hard I could hear it. Then she seemed to come to herself and gestured vaguely.

"I�m, I�m sorry, I�ll go and--- I mean, go ahead with--- I�m sorry, I�ll just---" She was even cuter when she got flustered. As she turned to flee, I surprised myself again.

"Emily, wait a minute. You don�t have to go. In fact, . . ." I hesitated an instant, slightly appalled by what I knew I was about to say. "In fact, why don�t you come and watch?"

My sister stood there, half-turned toward the door, and looked at me for a long moment. One shoulder came up defensively, which made her appear even younger. But finally she took a couple more hesitant steps toward me.

She was watching my cock, trembling there in my fist, and I was watching her face, wondering what was going to happen now. Because I had no idea. Then she glanced up at me and smiled a little at my expression.

"Do you do this often, Tom?"

"All the time. Don�t you?" Now that the ice appeared to have been broken, I began moving my hand slowly up and down again. The porn clip on my laptop had ended but I was discovering that my sister�s attention was far more erotic.

"Yeah, sometimes at night." She shrugged and moved closer. She was close enough now to reach out and touch my dick, if she chose to. She continued to watch my moving hand with interest. "Girls don�t need porn, though."

"You just think about boys, right?" I was making assumptions, having no idea how experienced she might be. Not the kind of thing a guy can easily ask his sister about.

She gave me a long, thoughtful look. "Certain boys, yes, I guess so." She tilted her head a little. "I�ve never seen a guy doing this, though. I don�t date much."

That kind of surprised me. A cute little teenager, smart and reasonably popular, and she didn�t have her choice of boyfriends? Then all other thoughts were chased out of my head as she reached a hand slowly toward my lap.

"Can I. . . ?" A quirky little smile appeared on her bright face.

"Please do." Christ. My hand stopped moving and I watched in some amazement as her fingertip stroked the hypersensitive head of my cock. I could feel her carefully shaped nail barely grazing the skin as it moved in a small circle around what I think of as the helmet.

Now, I liked girls and I hadn�t been a virgin for several years -- but I knew a couple of guys who had, frankly, gone nuts when they arrived at college away from parental supervision, and I had seen what happened to their grades as a result of their single-minded pursuit of pussy. Mom did all right in her career but there had never been a lot of extra money around our house, and I had known for a long time that my getting a degree was going to depend on loans and scholarships. I was trying to favor the latter over the former, and that meant keeping my grades up. And that meant controlling my urges where the opposite sex was concerned. So while I dated, and while there were one or two girls I had my eye on in particular, I was undoubtedly less experienced than many guys my age.

Okay, I admit it: I depended on regular masturbation to take the edge off. To that end, I was quite experienced at fantasizing. But never in my wildest daydreams had I ever considered a scenario like this. I was aware that my sweet, pretty, likeable, and increasingly sexy little sister had continued to develop while I was away, but there�s a sort of automatic censor that clamps down on those thoughts. Usually. Now my imagination was getting cranked up and I could feel my heart rate increasing.

"Emily, . . . can you . . . um. . . ."

She looked at my face again and it was obvious she knew what I was trying to say. With another small smile, she carefully wrapped her slender fingers around the upper part of the shaft, her little finger nestled against my thumb. When I slowly slid my hand downward, her hand followed. And up again and back down again. I removed my own hand and watched in a bit of daze as Emily continued to slowly, softly pump my cock. The sensation was indescribable. And suddenly I was worried that I would come too soon and this little fantasy would conclude.

I put my hand on hers and she stopped. She flicked a surprised glance upward. "Am I doing it wrong?"

"No, sis, you�re doing it extremely right." I took a deep breath. "I just don�t want this to end too quickly."

"Tell me what to do, then," she said softly. She was standing very close now, leaning slightly against my left shoulder, and without thinking about it I slipped my arm around her waist and gave her an affectionate little squeeze.

"Sis, move your hand all the way down, will you?" Her hand slid down my cock, now almost painfully rigid, until her fingers were buried in the curls of my pubic hair. "Squeeze tighter. And pull. Not too hard, though." Okay, I knew what I liked. And Emily, it seemed, was willing to take instruction.

She let go and changed her grip to overhand, squeezed hard enough to keep her hand from sliding, and pulled steadily upward and away. I felt the tingling from the strain deep in my groin and my eyes shut of their own accord.

When I opened them again, I looked up to see the pupils of Emily�s eyes visibly expanding. Without asking, she bent her knees a little and slipped her other hand down between my thighs, taking my balls in her palm and squeezing them gently. Little lightning flashes began exploding behind my eyeballs. I simply couldn�t believe all this was happening. I unconsciously tightened my arm around her slender waist.

"I like the feel of your dick, Tom. And your balls are so soft," she whispered. "I saw you naked, once, when you got out of the shower. Remember?"

I did, vaguely. It was after a high school soccer practice and I had just stepped out of the shower and was reaching for a towel when Emily opened the bathroom door without thinking, emitted a small "Oops," and quickly shut it again.

"I saw your penis and everything, and I thought about it for weeks afterward." She blushed, which seemed a bit odd under the circumstances. "I said I thought about certain boys when I get myself off, . . . but, Tom, for a long time now, I�ve mostly thought about you."

Christ on a dildo. My little sister had been having sex fantasies about me? Did that mean. . . ? I cleared my throat.

"Emily, . . . tell me what you think about."

She looked at me again and ducked her head. Her voice got smoky. "I think about lying in bed with you, Tom, with your arms around me, and you�re kissing me and stroking me." She lightly squeezed my balls again. "And I touch you like this, and you kiss me all over. All over my body. Everywhere." Her voice was becoming a bit gaspy and I was beginning to feel that fatal gathering in my groin. Not yet, please.

"Sis, . . . do you think about us fucking? Do you ever imagine that?"

She took a deep breath. "Yes, Tom, I picture us fucking. I picture you above me and your cock is hard and stiff, just like this, and it�s sliding in and out of me." She smiled broadly. "And that�s usually when I come, actually."

"Funny you should say that," I replied with a groan. I could feel the pressure reaching the point of no return and I tried to think what to say to Emily. And then I didn�t have to say anything because my amazing little sister crouched down half an instant before I erupted and crammed my cock in her mouth. I jerked and spasmed and came several more times in quick succession. If mom had walked in at that moment, I wouldn�t have cared. Emily�s tongue was moving over the head of my penis and I pictured my semen running down her throat, and that vision made me jerk and come again. And, having gone from crouching to kneeling between my thighs, she just kept licking and sucking as if she�d done it a thousand times.

Finally, with a lot of gulping, I was able to catch my breath. My cock still in her mouth, I stroked my sister�s cheek and wondered what was going to happen next. What happened was, Emily slowly withdrew my penis from between her lips and cleared her throat. I hoped my cum hadn�t gone down the wrong way.

"Emily, . . ." I wasn�t sure what to say. "That was, uh, that was completely unexpected and I�ve never been so turned on in my entire life."

She glanced down and blushed a little. "It turned me on, too, Tom. I guess you know I�ve never done anything like that before. But it just seemed like the right thing to do, all of a sudden."

I continued to stroke her cheek lightly. My sister was really something else. I wondered what the rest of the summer was going to be like. And Emily gave me a hint.

"Tom, do you have any condoms? Or can you get some?"

Copyright 2010 by Michael K. Smith. Copies may be made and posted elsewhere for personal enjoyment, but all commercial rights are reserved.