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Summer TV generally sucked. It was only the second week of summer vacation and I was already bored out of my mind. We lived way out in the desert, out in the middle of nowhere, ten miles away from the nearest anything, and there was just nothing at all for us to do.

"Bored much, Tamesin?" asked my twenty-year-old sister, Madison as she walked into the living room. She was home from college for the summer.

"Yeah, kinda."

"Well, turn off the TV for a moment. I've got something I wanted to talk with you about."

"Ok." I turned off the television and turned towards my sister as she sat down on the couch next to me. "So what's up?"

Madison took a deep breath. "Well. I need your help with something."

"Ok."

"I'm working on an experiment for my classes."

"What kind?"

"It's a biological experiment."

I nodded. She was majoring both biology and psych. "Ok. And?"

"Well... I plan to get pregnant. I want to have a baby and use certain techniques to raise him or her."

"Oh. Ok. Sounds a little weird, but ok." I wasn't at all clear where this was going. "What does this have to do with me?"

Looking me in the eye, Madison said, "I want you to be the father."

I was happy I was sitting down, or I probably would have fallen over. "What?" I managed to say after three tries.

"I want you to be the father of my baby."

"Uh... ok. There's like a billion things wrong with that," I said. "I'm your brother and I only turned thirteen just last month."

"You're a boy, and you're fertile," she said. "Probably, anyhow. At thirteen you'll produce quite a bit of sperm."

"Uh... yeah... but, like, if we, you know, had sex, that would be illegal." I blushed at the very thought of it.

"I wasn't proposing to have sex with you."

"Oh." I wasn't sure how to take that now.

"What I want you to do is to masturbate into a cup. You bring me your sperm, I'll suck it up with these eyedropper-like things, insert them into my vagina and squirt your semen into me. That way I'll get pregnant with your baby."

"Oh."

"See, there's lots of nonsense out there about inbreeding. It's my hope that I can give birth to a perfectly normal baby, raise it and have it turn out just fine. I won't reveal that my brother fathered the baby until he or she turns eighteen. By then the Statute of Limitations would have expired, assuming there's anything illegal about this, which I'm not sure of."

"Oh."

"It's my contention," Madison went on, "that a child born of brother/sister parentage will turn out to be better than either. All the best attributes of both for intelligence, looks, personality, etcetera."

"Oh."

"So what do you say?"

"Oh."

"Something more answer like than that would be nice," Madison pointed out.

I shook my head to clear it. "Uh... I don't know, Madison. I mean, this whole thing sounds more than little bit... I don't know. Weird."

She nodded. "I understand. You don't have to do it, but it would be very helpful to me. The whole experiment hinges on finding a baby who has a brother and sister for parents and the best way to be sure of that is to get pregnant by you."

For some reason, I had a raging hard on. I did my best to ignore and it and decided to stall for time. "Can I have a few days to think about it?"

"Sure. Try to make up your mind as soon as possible, though. We only have the summer and this won't be the most efficient way of making myself pregnant."

"What would be the most efficient way?" I asked distantly.

"Well, having sex, obviously."

"Oh, right." I took a deep breath. "Ok. Look. I need some time to think about this, ok? I'll let you know as soon as I make up my mind."

"Fair enough. I'll talk with you later," Madison said as she stood up and walked from the room.

There was no way I could sort this out easily, especially given the distraction of my very hard penis. I spent all day trying hard to figure out what to do. Finally I ended up retiring to my bedroom, hoping that I could lay down and think about this without any distractions.

As I laid there on my bed, I thought about all the possibilities. It might be really cool to have a baby with my sister. It would kind of suck that I would be a father without getting laid, but still. None of my other friends had done anything similar.

While I thought about this, I reached down and unzipped my pants, reaching inside to extract my penis and stroking it slowly while thinking. It was a mind- blowing idea. The more I thought about it, the more that I liked it. Could I really say yes?

My orgasm hit me by surprise while I pictured my sister pregnant with my baby. I had barely enough time to get my hand under my penis and catch a handful of sperm before it all splattered onto me. Moving awkwardly and pulling up my pants without spilling any of my sperm, I made my way out into the hall and knocked on my sister's door.

She opened it. "Oh, hey, Tamesin. What's up?"

"Uh... I got something for you." Rather awkwardly and feeling very embarrassed, I held out my spermy hand.

"Is that...?" She leaned close. "It is! Hold still!"

Madison vanished into her room and came back with what looked like, and probably was, an eyedropper. She used that to suck up as much of my sperm as she could.

"Thanks, Tamesin," she said, giving me a little hug. "Next time try to get it in a cup, ok?" She handed me a small plastic sleeve full of cups.

"Yeah, ok. When will we know when you're pregnant?"

"Well, I'll be doing pregnancy tests pretty often. I'll let you know what happens each time, ok?"

"Ok."

"Ideally," she continued, "we'll need to be doing this a couple times each day."

"Ok. I think I can manage that."

"Great!" Madison gave me another hug. "Well, I have to get busy. See ya, and thanks!" She shut her door.

I stood there for a few seconds and then went back to my bedroom, mind swimming with thoughts about what Madison was doing right now.

* * *

The next couple weeks crept past. Twice each day, once in the morning and once at night, I would masturbate into a cup and bring it to my sister. She'd take my sperm, disappear into her bedroom and do her thing. Hopefully we'd know soon if it had worked.

One morning just as I was getting ready to jerk off, there was a little knock at my bedroom door. Opening it, I saw Madison standing there.

"Hey, sis. What's up?"

"Well, Tamesin, I just took a pregnancy test."

My heart skipped a little. "And?" I asked carefully.

"I'm not pregnant yet."

"Oh." I wasn't sure how to feel.

"Don't worry, I'm sure we'll make this work," she said, patting me on the shoulder.

"So why hasn't it worked yet?"

"Well... it's possible that too much of the sperm is dying or becoming inactive in the time you ejaculate to the time I get it inside my vagina. Two or three minutes might not sound like much, but it can make a difference."

"Ok."

"So what we need to do is somehow decrease the amount of time. And to that end, I have an idea."

"Oh?"

Madison nodded. "What I'm wanting to do is this: next time you masturbate, I'll be in the room with you, and I'll just be wearing a bathrobe. That way when you climax, I can get the sperm and get it inside me all within less than a minute."

"So, you're going to be here while I'm jerking off?" I wasn't too sure about this idea.

Madison shrugged. "I think it's the best way to get this done."

"And you'll put my sperm in you while you're in here?"

"Yes."

I thought about that. "That might be interesting to see."

"You're welcome to watch if you want. I can hardly say no, seeing as it's your sperm that's going to be going into me."

"Yeah." Despite my misgivings my penis had hardened up considerably. "Ok. Do you want to do this right now?"

"Let me go get my stuff. I'll be right back." Madison was gone and returned in less than two minutes. Once she was back in my room she said, "Alright, I'm ready when you are," and sat down on the chair at my desk.

Blushing and feeling really shy, I got on my bed and pulled the blanket up over my body. I then reached into my boxers and pulled out my hard penis, giving it a couple tugs.

Madison was sitting there, watching me. This put me off my game.

"Uh... would you mind... like... turning around or something?"

"Oh! Sure, sorry." She turned around and faced the wall, taking a book off my desk and looking through it.

I closed my eyes and tried to forget that my sister was here as I began masturbating a little more. The blanket was making a rhythmic rustling noise as I beat off, but I tried my best to ignore that, hoping Madison wouldn't hear it.

I tried my best to get off, but it just wasn't working. Finally I had to give up. I sat back with an annoyed sigh.

"What's wrong?" Madison asked.

"I just can't... you know... with you in here," I said, feeling like a dork.

"Oh... well, I have an idea."

"What?"

Madison sat back and propped her legs up on either arm of the chair, lifting and spreading them as she did so. She had only a skirt on and, I knew now, no panties. I was looking at my first ever real life vagina.

"Holy shit," I muttered.

"Does this help?" she asked, smiling a little as she took a finger and rubbed it along her slit.

"Yeah... hell, yeah!" I said, grabbing hold of my penis and stroking as fast as I could, no longer caring if my sister saw.

"You should pull back the blanket," she said. "That way you won't get any sperm on it."

"Ok." I pulled the blanket back, exposing my hard penis to my sister for the first time, and leaving me basically naked, since all I was wearing were boxers that were pulled down. I began jerking as fast as I could, knowing that now I would have no trouble cumming. Seconds later, I let out a low moan and my penis seemed to explode, sperm shooting out all over my bare chest and hand.

"Wonderful!" my sister said, hoping down from the chair and coming over to me. "Now hold still." She took one of the little eyedroppers and held it against my stomach, sucking up some of my sperm. She did the same with another one and then sat back down, spreading her legs wide.

Now my eyes went about as wide as Madison�s legs did, as I watched her insert one of the eyedroppers into her vagina and give it a squeeze. She followed suit with the second one and then sat back looking pleased.

"Alrighty," my sister said, giving me a happy smile. "With any luck, I'll be pregnant in a few minutes."

"Cool," I whispered, somewhat overwhelmed by the thought.

Madison walked over and gave me a little kiss on the cheek. "I'll see you later tonight," she said as she walked off.

As for me, I laid back with a stupid little grin on my face, my penis still slightly hard as I thought about my sister being pregnant by me and as I thought about how cool it had been to see her vagina.

* * *

Another couple weeks went past, me ejaculating every day and watching my sister suck it up into the eyedropper for another round of attempted impregnation. Each time she did it I had the joy of watching her stick something into her vagina. She didn't always masturbate with me, but at least I got to see my sperm going into her.

Finally the day of the next pregnancy test came up. I waited impatiently outside the bathroom while my sister did her thing. After a few minutes she came out with a little frown on her face.

I drooped a little. "Not pregnant?"

"No."

"I'm sorry," I said, feeling somehow responsible for my sperm not doing their job. Get to work, guys! I wanted to shout.

"That's ok, we'll just keep trying," Madison said, giving me a little kiss on the cheek. "You up for it right now?"

"Hell, yeah."

"Good. Let's go."

It wasn't too much longer after the conversation that I had yet another orgasm while my sister watched and waited. It wasn't the best orgasm I'd ever had, but it certainly wasn't bad. I laid back and watched as she sucked up my sperm with her two eyedroppers. Suddenly an idea occurred to me.

"Hey, Madison, wait a second," I said as she was getting ready to put the eyedropper into her vagina.

"What?"

"Can I..." I blushed a little, despite the fact that I was currently naked, laying on top of my bed with some remnants of sperm on my stomach while my semi-naked sister was sitting across from me with two eyedroppers of semen ready to stick into her vagina. "Would you mind... I mean... can I... like... put it in you?"

"The sperm?"

"Yeah."

"Uh... well, sure, I guess." She handed me the eyedroppers and said, "Here, let me lay on your bed. It'll be easier that way."

"Ok."

I moved aside as my sister got comfy on my bed. Once she was settled she spread her legs high and wide and said, "Ok. You think you know where it goes?"

"I think so." Shaking a little I reached out and poked the first eyedropper against what I thought was the right place. "Here?"

"Yes."

Very slowly I began to insert the eyedropper, thinking how cool it was to see it sliding into Madison's vagina. Once it was all the way inside I gave it a little squeeze, seeing my sperm shoot up into her. It was way cool. I did this again with the second one and by the time I was done my penis was massively hard again.

"That was sweet," I said, sitting back a little.

"Glad you liked it." Madison smiled at me.

I looked down at my penis. "Uh... if you want, I can give you some more right now?"

Madison laughed. "Let's save it for later tonight, ok?"

"Ok."

She sat up and gave me a little hug. "I'll see you later!" she said, gathering up her things and heading back to her bedroom.

* * *

For another month Madison and I continued this little ritual. Now things were getting a little more tense, however, since there were only three weeks before she had to go back to college. We were both very hopeful that her next pregnancy test would show a plus rather than a minus.

"Negative."

No such luck.

"Damnit!" I said, feeling annoyed.

"Don't worry," Madison said, putting her hand on my shoulder. "We'll make this work. I have a little idea to try. I'll meet you in your bedroom in a couple minutes."

"Ok."

I went to my bedroom and got naked, laying on top of my bed, idly stroking my penis and wondering what Madison's plans were.

When she came into my room, my sister was wearing a bathrobe. She said, "Ok, here's the idea. The problem is probably a matter of too much of your sperm dying before I get it into my vagina. So I'm thinking that what I'll do is lay on my back and when you get ready to cum, you hold your penis right up against the entrance to my vagina. That way your sperm should go directly from you into me without any problems."

"Oh!" I thought about this. "Uh... sure, ok."

Madison pulled the bathrobe off and was now entirely naked. I'd seen her vagina more times than I could count, but hadn't ever seen her breasts before. If I hadn't already had a major hard on, this certainly would have given me one. She laid on my bed next to me.

"Right, now get between my legs as you masturbate. Then when you're about to cum, just move really close and put your penis right here," she said, spreading her vagina open and showing me the small hole I'd gotten familiar with lately.

"Ok."

I crouched between my sister's legs and stared directly at her vagina as I started masturbating. It was a beautiful view! As I masturbated I thought about how incredibly cool it was that I might, with any luck, be a father in nine months as a result of our activities! Wow!

These thoughts, as they often did, drove me ever closer to an orgasm. As I felt it building up, I whispered to Madison, "I'm gonna cum soon..."

"Quick, put it right here!" my sister said, holding her vagina wide open.

I moved forward, touching the tip of my penis to her wetness. I pushed slightly, just enough for a little bit of the tip to go in, and then started cumming harder than I'd ever cum before. I my best to keep myself steady, hoping that enough of my sperm would get inside my sister to make a difference.

When I was done cumming, I sat back, a tiny string of semen connecting the tip of my penis to my sister's vagina. It snapped eventually. I saw just a tiny bit of sperm leaking out of her, but not a great deal. I hoped most of it had ended up inside.

"Do you think it worked?" I asked as I sat back on my knees.

"I hope so!" Madison said, continuing to lay on her back, letting my sperm flow into her body. "I think it probably helped, at least. Much more of your sperm should have survived the trip this time."

"Cool." I looked at her vagina and pictured my little boys swimming. "It's really kind of... awesome to think about, you know?"

"Yeah."

I laid down next to her. "What are you going to do with the baby once it's born?"

Madison shrugged. "I'll raise it and take good care of it. No one will know who the father is until the baby is eighteen, and then you'll get the credit you deserve." She smiled at me.

"Cool." I grinned back.

"I hope if it's a boy he winds up looking like you," Madison said, smiling at me.

"Really?"

"Yeah. You're a good looking boy." She ran her fingers down my bare chest. "Especially when you're naked."

I giggled a little. "You're pretty nice naked, too."

Madison let her hand drift down my body. She let it come to a rest on my still hard penis. She'd never touched me there before. As she gave it a couple slow strokes, she said, "It's very nice thinking that because of this, I'll have a baby."

I let out the breath I'd been holding since she touched me. "Yeah..."

"Tamesin?"

"Yeah?"

"You think you can cum again?"

"Like now? Yeah."

"Well... get between my legs again. We can try something else." My sister's voice had an odd quality to it.

"Ok." I got up and knelt between her legs, looking down at her vagina. "Now what?"

"Put your penis against my vagina again."

"Ok." I did so.

"Now..." Madison reached up and put her hands on my shoulders, tugging me down towards her. "Lower yourself down a little."

"Uh... ok." I lowered my body down on top of my sister. It was hard to keep my penis positioned just right, though. I started feeling an odd sensation around the tip. "Uh... Madison?" I asked, putting two and two together as I felt a strange, warm wetness work itself around the tip of my penis and then slowly along the shaft.

"Shhh..."

"But I think I'm-"

She put her fingers on my lips. "Shhh..."

"But... I'm going into you..." I whispered.

"I know..." she said, pulling me closer.

"Oh, god," I whispered, feeling the last bit of my thirteen-year-old virgin penis sliding into place deep inside my sister's tight twenty-year-old vagina. My sister and I locked eyes as my pubic hair merged with hers. Sparks of pleasure were shooting from my penis and going out all over my body. I'd never felt anything so amazing! I was actually inside a girl!

"What do you think?" Madison asked me quietly. I could feel her heart beating fast inside her chest.

"I think... I... oh, it's wonderful..."

"You think you can... move it around a little...?"

"Yeah..." I flexed my hips, feeling my penis move slightly inside my sister's vagina. It felt good, so I kept doing it. It was sweet.

Under me, Madison was moving around, wrapping her legs around my waist, moaning a little and shivering with pleasure. She started whispering into my ear, "Fuck me, little brother... fuck me... give me a baby... fuck me..."

I began fucking as fast as I could, trying hard not to slip out of Madison. Hearing her talk like that, realizing that I was actually fucking a girl and that I might get, I hoped, get her pregnant, was so fantastic I couldn't believe it.

Soon my thrusts became very rapid and short. I started breathing very, very hard as the pleasure swept over my young body. Then I let out a grunt of pure joy as my penis began firing off inside my sister's heavenly vagina. I fired off several hard blasts of sperm into her.

As soon as I was done cumming, I fell on top of her, totally overwhelmed by everything I'd experienced, my sister gently stroking my hair and whispering, "You did good, little brother... you did real good..."

We fucked every chance we had after that. Almost every time we did it, I was on top of her, the logic being that my sperm would have a better chance of getting her pregnant that way. I didn't really care too much at this point. All I knew is that I was getting as much sex as any young boy could hope for.

My sister eventually went back to school. She took the last pregnancy test while she was there. She told me in a very excited phone call that it had been positive. A little chill went through my body as she told me that I was going to be a father in a few months.

Now a year has gone by since my sister first asked me the favor. Our baby daughter was born a couple months ago. She's healthy, happy and doing well as is Madison. I don't know exactly how the baby will turn out in the long run, and it does feel kind of weird to be a father at my age, but I knew that with Madison taking care of her everything would, hopefully, work out ok in the end.

END


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