17 comments/ 84022 views/ 114 favorites What We're Made to Do By: nightshadow Author's note: This story should NOT be viewed with anything even closely resembling reality. It's meant for fun and titillation. If you're looking for realism, there's plenty of other sources to choose from. If, however, you're looking for a quick bit of fun, read on! I hope you enjoy it and, if you do, please vote! As is standard with these types of stories, I must make it clear that all characters are 18 years of age or older. ***** Colin Peterson sat in his office and stared glumly at his computer screen. For days, now, it had been like that. Just staring at a blank Word document, hoping and praying that a good idea for a story would come to him. Anything, anything at all would've been a joy to write. Unfortunately, nothing, nothing at all would come to mind. He was a firm believer in never forcing his writing, but he'd even tried that the day before to no avail. Even trying to write a porn story left him feeling uninspired. He had to write something! Since his wife passed away six years ago, he was the only breadwinner in the house and putting his daughter through private school was not cheap. And this was her last year at St. Francis. He HAD to write something, if only to keep her from going into public school, where God only knows what horrible things she'd learn. He wasn't Catholic, but his late wife had been. She hadn't demanded much of him except that their daughter go to Catholic school, like she had. She'd cited the discipline and protection that St. Francis offered to its students and Colin simply couldn't say no. At the time, money had been rolling in from a series of books he'd written, but now times were leaner. Book deals were harder to come by, even for established writers, while the bills kept growing. Colin glanced at the clock and saw that it was 4 o'clock, just about time for his beautiful little girl to get home from school. To be fair, though, she was far from little anymore. Short in stature, yes, but no mere girl. She was a young woman and she was blossoming into a ferociously attractive one, at that! Colin loved his little Katie with every fiber of his being, but he wasn't blind. He knew just how gorgeous his innocent baby was. Her chest, no longer flat like it had been before puberty took command of her body, was well endowed and impossible to miss. Her hips, flared seductively and incapable of not swaying hypnotically, seemed to call attention to her strong legs and tight ass, developed from swimming and running... until her large breasts kept her from enjoying those sports to their fullest. And her lovely face, adorned with beautiful eyes and truly feminine features, was a true vision of beauty to behold. God forbid that she end up in public school, where she might fall under the influence of perverted young boys! Oh, for his little girl, he'd write the Great American Novel if he had to! WRITE SOMETHING, DAMMIT! he commanded himself. GIMME AN IDEA! ANYTHING! Nothing came. And he sighed with frustrated despair. The front door slammed shut just then and Katie's voice drifted through his office door. "Daddy! I'm home!" Colin heard his daughter make her way to his office door. She rapped on it lightly. "Come in, sweetheart!" he called out. His office door opened slowly to reveal Katie, still in her Catholic school uniform. It was the classic ensemble of white button-down shirt, black neck tie, plaid skirt, white knee-high socks and black shoes. She walked up to his desk, her hands behind her back, and looked solemn. "Is something wrong, Katie?" he asked. "Well... not really, no. I just..." she looked down at her feet awkwardly and took a deep breath. "I need to ask you something. Help with something." "Anything for you, sweetheart. What is it?" Colin patted his thigh and scooted his leather chair back. "Come sit and tell me what's going on, honey." Katie obeyed, placed her small black purse on his desktop and made her way around the large oak desk. She sat down gently on her father's lap and, once again, took a deep breath before speaking. "They put me in a special class at school today," she said. "It's only for those of us who are already 18 and going to be graduating. It's... a sex-ed class, kind of." Colin's brow knit in confusion. "I wasn't aware that Catholic schools were teaching sex-ed," he said. Katie shrugged. "It's not like a normal class, Daddy," she replied. "They wanted to tell us what to look out for, after we graduate, since we've been so protected at home and in school. They told us how boys will treat us and what some of us should expect." "I see," Colin said flatly. "Well, I hope that they didn't misrepresent the male members of our species too poorly, sweetheart. We aren't all animals, you know." Now it was Katie's turn to knit her eyebrows. "Well, that's just the thing, Daddy. They didn't tell us any of what I expected. I mean, I'm not a total idiot. I... I'm not as innocent as most people think." Colin reacted with surprise at hearing that. "Oh, really? Is this something you need to confess to a priest, maybe, rather than your father?" Katie's spine went erect with determination. "No. I'm old enough now that you're going to have to realize that I'm not going to be your little girl forever. Daddy, I've had sex. It happened once, a year ago, and it wasn't that big of a deal and it was only the one time. We used protection and, no, I won't tell you his name. Some things have to stay private. But... I think I need to tell you all of this, so that you'll understand." Colin, like any good father, felt a rush of panic and anger, but he was also a rational man of the world and had always known, intellectually, that his daughter would one day become a woman. He had just hoped that it wouldn't happen on his watch. While he struggled to get a grip on his emotions, he had to admit that Katie seemed to have dealt with it in a mature fashion. Seizing upon that realization, he allowed himself to feel pride in her. As sheltered and innocent as she was, she was smart enough to protect herself, which is the least he could ask as her father. Colin closed his eyes and focused on the conversation instead. When he reopened them, his gaze fell on her beautiful eyes and stayed locked on with keen interest. "So that I'll understand what, Katie?" Then Katie looked away, suddenly bashful. "They told us what sex is for. That it's for making life. That God made it feel good so that we would be motivated to procreate. And I get that. Really, it makes sense. But it got me to thinking and I did some studying and I can't find anything to prove me wrong. Dad... am I wrong in thinking that God wants me to be a mother?" Colin's eyebrows nearly shot off his forehead. Of all the things she'd ask him, he hadn't expected that. And it was certainly innocent enough! With a wash of relief, Colin allowed himself to visibly relax. "Of course, sweetheart," he said. "Yes, as a woman, your primary function, biologically speaking, is to have babies." "So using condoms like I did last year... that was going against God's will?" Now Colin found himself at a crossroads, but he charged ahead with the intention of being as honest and open with his daughter as he could, since his late wife wasn't around to navigate this mine field for him. "Yes and no," he answered. "While, yes, you were made with the purpose of having babies, I don't think God would intend for you to have them before you're ready." Katie nodded with understanding. "So... sex... doesn't always have to be for making babies? Because the first time I had it, it hurt at first, but I have to admit that it felt really good towards the end." Colin smirked a little at that. "Let's just say that... sometimes you can have sex as a sort of practice." "Practice? At making babies?" "Sure," Colin said easily. "That's what I thought," Katie said and then squirmed uncertainly on his lap. "You see, Daddy, that's the exact conclusion I came to when I talked about this with a friend from school. Again, no names. She's... she's already been sexually active. But she didn't use protection because she was taught that protection is sinful. But she DID use protection, in a way. She got some morning-after pills. But since she broke up with her boyfriend, she doesn't use them anymore, so... she gave them to me. For practice." Colin felt himself becoming wary once again when he heard that. "I see... and do you intend to... get some practice?" Katie nodded softly, her long hair dancing across her shoulders as she did so. She looked down at her hands, which were fidgeting in her own lap. "I'd like to, but..." "But what, honey?" "I don't have a boyfriend. And the guy I had sex with the first time... that was just a one-time thing. I won't ask him again. He wasn't mean or anything. I just... he's with someone else, y'know?" "So you want to... practice having sex, but you don't have a way of doing it?" "...and that's where you come in, Daddy." Colin was confused and let it show. "Uhm... I'm not following, sweetheart." Katie huffed out in exasperation. "Geez, Daddy! Do I have to come right out and say it?" "I think you'd better, because I have no idea what you're trying to ask me." "You're the best man I know and I trust you with my life, Daddy. I want to practice making babies... with you." Colin was immediately struck silent with shock. It took him several seconds to find his voice, which shook when he finally managed to speak. "S-sweetheart... we can't... we can't do that. I'm your... I'm your father! Fathers and daughters do NOT have sex!" "But they DO!" Katie said emphatically. "Daddy, I've read the bible! Lot and his daughters had sex! They did it in order to survive and keep the eyes of the REAL sinners off of them! Daddy, how do you think they proved it to their neighbors? He MUST have gotten them pregnant! No other suitors came around their house because everyone else thought they were too straight-laced, so in order to prove that they weren't, and to keep the crazy people from killing them, Lot had to make babies in them. With their big bellies, and no other suitors around, everyone knew that Lot was the father to his own grand-babies. It's the only thing that makes sense! And that's not all! The Egyptians and practically ALL of the European royalty... and... I might even know a girl or two who's been with her father once or twice." She looked at him sternly. "But no names!" Colin's head swam with doubts and confusion. While he couldn't refute the logic presented by his daughter, he couldn't believe that she was trying to justify incest by using stories from the bible, ancient history or anecdotal confessions from her girlfriends. It was all just too surreal for him to keep up. And, truth be told, his resolve was beginning to wane quickly. Katie's mother was the last woman he'd had sex with, six years ago, and his lusts were running rampant. And back when she WAS alive, his wife was always a fan of doing a little daddy-daughter role playing to spice things up. "I- I don't know, sweetheart. I guess that makes a weird sort of sense, but... you're talking about incest. Even if there's a biblical justification, it's still against the law." "So is speeding, Daddy, but I've seen you drive as much as twenty miles over the speed limit," Katie countered. She charged on before he could respond. "Look, Daddy, the fact is, I'm 18 now. I'm about to go to college soon. I WILL be out in the real world. I'll be around boys my age. I WILL have sex. That's just a fact of life, Daddy. So... do you want me to go out there knowing nothing about what I'm doing or do you want me to know EXACTLY what I'm doing? If you help me get enough practice, it reduces the risk of some skeez-oid convincing me to do something reckless without me knowing that it's a bad idea. What if one of them slips me a rufie? Or gets me drunk at a party? Or just plain ol' seduces me with his charm? What if I get so caught up in the moment that I forget to take a morning-after pill? And it's not like some stupid college boy will remind me or even care! Daddy, if you help me practice, I won't be so easily fooled! I trust you, Daddy, because I know you'd never do ANY of those things to me. You'd help me to remember and be kind to me. Please, Daddy, PLEASE help me prepare for the outside world! If my body is made to make babies, then I want to do it RIGHT and when I'm READY for it." She put her arms around her father's neck and leaned in, her eyes wide with pleading and desire. "Please?" Colin felt his throat bob up and down as he gulped back every argument he could think of. No matter how he cut it, this was his daughter asking him for his help. She needed his guidance and experience. Never, in all his life, had he refused either of those things to her. But this... this was something different. It was so very taboo and wrong! But she'd somehow managed to trivialize those arguments, too. Colin stared back at his beautiful daughter, with her earnest and pleading eyes, and found that he couldn't say no to her. He took a deep, cleansing breath and said, "Okay." Katie yelped with glee at her father's answer. "Thank you, Daddy! Thank you! Oh, you're the best father EVER!" Without a second's pause, she kissed her father appreciatively on the lips and pulled back. "Can we do it now?" she asked enthusiastically. Surprise exploded on Colin's face as he gaped at his daughter, who was still sitting on his lap. "What, HERE? NOW?" Katie squirmed once again on her father's lap, this time with a hint of seduction in her movements. "Why not?" she asked reasonably. "I've been thinking about this for HOURS. When I got home, I took off my panties, hoping that you'd say yes. And you did! Daddy, you're gonna help me practice making babies! You said it!" And to illustrate her point, Katie lifted up the front of her skirt and exposed her naked pussy to her father. "See?" Colin stared in complete awe at his daughter's naked mound. "You... you shaved?" "Oh, yeah," Katie answer breezily. "Remember? I was on the swim team until these things," she hefted her large breasts, "got too big. We all shaved down there. Heck, Daddy, I've been shaving down there since I was sixteen!" "I- I don't know if here and now would be-" "It's okay, Daddy," she interjected. "I get it if you're nervous and stuff, but I wasn't lying when I said that I've done it before. Even if it only was just once. I know what it looks like, so you're not going to surprise me with it." Colin paused again before replying. "...really?" "Sure!" Katie jumped up off her father's lap and looked down at it critically. "Go ahead, Daddy. Show it to me. I want to see it." "I... you know... uhm... it's kinda big," Colin said uncertainly. "Oh, c'mon, Daddy. It can't be THAT big." She flipped up the front of her skirt, once again exposing her naked pussy to her father. "If a baby is meant to come out of here, then I'm sure we can fit whatever you have down there inside of it. Right?" "Well... okay..." Colin replied, surprised more at himself than anything. He just couldn't believe that he was going along with this! As though he was watching someone else doing it, he and his daughter both gazed with intense interest as his hands unbuckled his pants, slid them down his legs and exposed his penis to her. Katie stared at the appendage in rapt silence for a few seconds. Finally, she said, "Wow. Mom was... that's... that made me?" Colin looked back up at his daughter. "Yes, sweetheart. This is the penis that made you." "It's... bigger than I expected," she simply said. Katie got down on her knees to get a closer look at her father's cock. "It's not completely hard yet," she noted. Colin smirked mirthlessly. "Yeah, well... this has all taken me a bit by storm, honey." Katie looked back up at her father with big doe-like eyes. "Do you need some encouragement, Daddy?" She sat back on her heels and began to unbutton her white blouse, keeping her eyes locked on his. "I've noticed you glancing at me, Daddy. It's been a long, long time since you've seen me... naked... I've changed a lot since then." "Yes," Colin agreed solemnly. "Yes, you certainly have, sweetheart." When her blouse was completely unbuttoned she shrugged it off, leaving just her bra to cover her large breasts. At a glance, Colin had to guess that they were probably D-cups. They were certainly more than a handful and the cleavage looked so soft and inviting that it almost made his mouth water. "I think you're finding your motivation," Katie said with a glance at her father's member. It was showing definite signs of arousal. "It's getting... bigger." She placed her hands on Colin's knees and slowly started to move them upward, across his thighs and towards her obvious goal. "I could... suck it for you, Daddy," she sweetly offered with a blush. "I've done it before." Colin swallowed again. "You- you'd do that?" Katie leaned in. "For you, Daddy? Anything. You've given me so much. And you've always been there for me. Even after Mom died, you were right there. And now you're here for me again, willing to help me learn what I need to know about being a woman. I think," she grasped his shaft firmly and brought her full, luscious lips close to the tip, "that this is the least I could do. Y'know, to give you... motivation." With that, Katie engulfed the head of her father's cock with her mouth, her lips slowly moving down his thick shaft. When she'd gone as far down as she could, she let out a soft moan, which made Colin's hips involuntarily flex. Colin's mind was swimming with wonder at his gorgeous daughter. He watched with a mixture of fascination, stunned surprise and adoration as she worked her mouth up and down his shaft. She wasn't a pro by any stretch of the imagination, but what she lacked in skill, she most certainly made up for with enthusiasm! Colin gripped the arms of his leather chair like his life depended on it while Katie threw herself into the act of loving his life-giving member with her lips and tongue. A few times she seemed to go down just a tad too far and gagged just the tiniest bit. On the third time of doing that, she pulled completely off his tumescent, throbbing cock and gasped for air. With a swipe of the back of her hand, she cleaned her mouth and chin of saliva and gently stroked her father's penis with love. "I'd say you're definitely motivated now. Are you ready, Daddy?" Colin said nothing. All he could do was physically respond at that point, so he just dumbly nodded his head. "Good. So am I," Katie said. She stood up and positioned herself over her father's proud penis. With one hand to hold it steady and the other to hold the front of her skirt up so that they could both witness their union, she slowly started to descend upon the same cock that brought her into this world. When just the tip was inside, Colin halted her. "You're absolutely certain about this, baby girl?" he asked cautiously. "Of course, Daddy. They said that if I'm going to make babies, it should be with someone I love and trust." "But we aren't actually going to make a baby, sweetheart," he countered gently. Katie blinked down at her father. "But we are," she said. "Until I take the morning-after pill, anyway. I've been careful with watching my calendar, Daddy. I know that, right now, I'm ovulating, making me very, very fertile. For tonight, we'll make a baby inside me. The pill will get rid of it tomorrow, but tonight..." she leaned down and kissed her father full on the lips. When their lips parted, she continued, "...tonight we breed, just like we were made to do." Panic rose in Colin's eyes. "But you DO have the pills, right?" Katie glanced over at her purse. "Of course, Daddy! I got them today during gym class. I'm not an idiot! Like I said: today is my most fertile day, Daddy. But this is ONLY for practice. I promise that as soon as we're done, I'll take it, okay? You can even watch me take it." What We're Made to Do Colin looked at his daughter's purse, back at her and then back at the purse. Inside that little pouch was his salvation, the only means of undoing what he was about to do with and to his only daughter. Slowly his eyes worked their way back to Katie and he nodded his head in acceptance. "Okay. But only if I get to watch you take the pill when we're done." "Deal!" Katie said with a sweet smile. Then she looked back down to where they were just barely joined. Colin followed her gaze and they both watched with reverent awe as she continued to lower her small body onto his thick shaft. Inch by slow inch, the father's penis was engulfed by the daughter's innocent flower. Katie had to hitch her hips a few times in order to adjust to her father's sizeable girth, but with delicate care she finally settled down so that her ass cheeks were flush with her father's thighs. They were fully joined. "It's in!" Katie said with a gasp. "And, oh God, it's SO deep! I mean, it's ALL the way in!" Colin nodded in agreement. He could feel the tip of his swollen cock as it pressed firmly against the entrance to her womb. "I'm right at your cervix, honey," he told her. "Right at the place where babies are made." "So when you have an orgasm, your sperm will go directly into me, right, Daddy?" "That's how it works, baby, yes." "And millions and millions of my father's little sperm will start swimming around inside me, looking for an egg to fertilize, right? And it'll be easy for them, because my eggs are ready and their coatings are thin, so one of those little sperm could jump right inside and we could make a baby tonight." "Y- you've described it perfectly, honey." Katie squirmed on her father's lap, causing his thick cock to shift around inside of her tight, clutching pussy. "It just sounds all so complicated, Daddy. All of those things happening at once." "Well," he said with some effort, "it doesn't happen ALL at once." Katie frowned. "Really? The first time I was with a guy, he lasted, like, ten seconds." Colin couldn't help but chuckle at the poor, nameless boy's expense. "Sweetheart, he was a boy. I'm a man. Men have much better control over themselves and last a lot longer." Katie looked somehow disappointed. "Oh," she said softly. "But don't worry, honey. Like you were taught, the whole point of sex feeling good is to ensure that we DO make babies. I'm guessing that your first time... you said that it started to feel good towards the end, right?" "Mm-hmm." "But it lasted for only a few seconds?" Katie hesitated. "Well, HE did, but his... erection lasted a little bit longer. We were together for, like, a full minute, I think." Colin smiled lovingly at his daughter. "Baby, I promise that I'll last much, much longer than a mere minute. Tell you what: you go ahead and move your hips some. Move them up and down for a bit. See if you can make yourself feel good, okay?" Katie's eyes brightened at that. "Really, Daddy?" "Of course, baby. I want to make sure that you get the full experience. Go ahead and please yourself for awhile." "...but what about you?" "Trust me, honey. You pleasing yourself will please your father just as much. Here, let me help." He placed his hands gently on his daughter's hips and helped her to start the rise-and-fall motion of a girl riding a cock. Katie followed her father's guiding hands and rocked up and down on her father's penis for several seconds. After a minute of this, Colin reached up to gingerly touch her large breasts. Almost as if driven by instinct, Katie pulled the cups of her bra down and exposed her luscious teats for her father to feast upon. Colin wordlessly kissed the flesh of her bosoms and eventually fastened his lips to a nipple and began to suckle his daughter's breast with passion. "Oh!" Katie cried out. "That feels good, Daddy!" When he didn't respond, she went on. "In biology class I learned that, when I get pregnant, my breasts will get full of milk. But they're pretty big already, aren't they, Daddy? Would you like it if you could suck milk from your daughter's breasts? Knowing that it was you who made them that way and put a baby inside of her?" Colin stopped just long enough to gasp out, "Yes!" "Me, too, Daddy," she said with a squeal as he reattached himself to her nipple. "Oh! God, that feels good, Daddy!" Katie continued to ride on her father's lap, feeling his thick shaft invade her tight pussy walls. From the moment she started, she could feel the slow build of something wonderful in her overfilled loins. Sometimes, because of that building sensation, her rhythm would falter and her hips would twitch on their own, but when she gave herself over to it, she found that she could move fluidly without stopping for a long time, riding not just her father's unprotected cock, but the growing wave of pleasure that seemed to pulse from deep within her tummy. The additional sensations provided by her father's ravenous suckling on her sensitive breasts only made that feeling grow stronger and more intense. Every time she bottomed out on his turgid, fleshy pole, she felt like she was being tickled in the most amazing way from deep inside. After a few minutes of this had passed, she felt the pleasure suddenly peak and a cry of joy escaped her lips. She tossed her head back, letting her long hair dance over her buttocks, while she ground her spasming pussy onto her father's groin uncontrollably. Finally, almost as quickly as it had begun, her breathing returned to normal and the aftershocks of her orgasm fluttered throughout her body. She opened her eyes, not realizing that she'd clamped them shut when her orgasm hit, and looked down at her loving father with wonder. "That was... AMAZING!" she said breathlessly. Colin smiled warmly. "I'm glad you liked it," he said, overjoyed that he'd just given his daughter her first real sex-induced orgasm. "Felt pretty good on my end, too." "Really?" she asked with genuine surprise. "Did you cum, too?" Colin shook his head. "No, baby girl, I didn't. Not yet. But I'm getting there." "I can ride you again, if you want," she offered. "To help you cum." Colin smiled again, this time wolfishly. "Actually, sweetheart, I was thinking that maybe we could change positions." "Okay!" Katie said happily. "How do you want me?" Colin leaned forward and kissed his daughter passionately. It was the first time he'd initiated the kiss and it had happened so suddenly that he'd almost given no thought to how natural and good it felt. He just reveled in the taste of her lips and the warm wetness of her pussy as it rippled softly around his member. When their lips parted, he said, "I think I want to take you from behind." Katie smiled when she heard that. "On the desk?" "Yep." "Okay!" and with that, she jumped up off his lap, sad to feel the sudden emptiness as she did so, and leaned over the side of his desk, her soft tits pressed firmly against its hard, unyielding surface. She looked at her father with slight uncertainty. "Like this, Daddy?" Colin got up from his chair and stepped behind his daughter's up-turned ass. "That's perfect, sweetheart." Holding his cock in one hand, stroking the wetness provided by his daughter's pussy into the skin of his shaft, he deftly flipped up the back of her skirt to expose her perfect ass. He'd never tried anal sex, mostly because the idea of putting a recreational device into a waste management center was repugnant to him, but he idly wondered if he might one day try it with Katie. With only a second of reflection, he figured not- she was intent on learning how to make babies and that couldn't be done through anal sex. And, really, that suited him just fine. He was more than happy to hold onto those lovely hips and watch from above as his cock drove into his little girl's pussy. "I'm going to insert my penis back inside, sweetheart," he told her. "It'll feel a little different than it did when you were on top, but I promise that it'll feel just as good." Katie held her hands out to the sides of the desk to keep herself still. "Okay, Daddy. Whenever you're- whoa!" Colin pushed his cock forcefully inside Katie's drenched pussy in a single stroke. This time, both of them could tell, he was able to get MUCH deeper inside her. "Are you okay, sweetie?" he asked when he saw that her knuckles gripped his desk so tightly that they were turning white. Katie took a few seconds to catch her breath. "I- I think so, Daddy. I, uh... I think you went past my cervix, this time." "Really?" Colin asked. He shifted his hips from side to side. Sure enough, the tightness he felt at the tip of his cock was completely unforgiving and his cockhead wouldn't budge. "Wow. I've never been this deep inside a woman before," he remarked with wonder out loud. Katie looked back at her father over her shoulder and smiled. "That's a good thing, right?" Colin looked down at where they were joined and thought about it for a second. "Well, if sex is meant to make babies, having the head of my penis INSIDE the entrance to your womb is about the best way to ensure that we'll make one inside you." "Yes!" Katie hissed with triumph. "But... it doesn't hurt?" Colin wiggled his hips slightly again. While he couldn't move side-to-side very well, he found that he was able to move back and forth much more than he expected. "Not at all, honey," he told her. "It's just very, very tight, like there's a tiny fist wrapped around the head of my penis." Katie giggled. "And it won't let go until it gets what it wants!" She looked back at her father again. "I think you should oblige, Daddy. Give my womb what it wants: as much of your sperm as it can hold!" Colin gripped his daughter's hips firmly. "I think I can manage that, sweetheart. Hold on- Daddy's driving!" Without another word, Colin began to rock his hips back and forth with short, jabbing strokes. He looked down and watched with awe as his thick shaft moved in and out of his daughter's cum-hungry pussy. While he thrust into her, Katie started saying the most erotic things to encourage him. She kept telling him about how she wanted him to hose her down with his sperm, how she wanted him to make a baby deep inside of her. All of the erotic banter seemed to light a fire within him that could not be ignored. His thrusts became more insistent as he pummeled his daughter's wet tightness and picked up speed. Meanwhile, Katie's cervical ring refused to let her father's cockhead go. The flared tip of Colin's penis was held in a death grip by the entrance to the young girl's womb and flexed each time he tried to pull back for a hard thrust of his hips. The sensations were maddening to him. Katie cried out with unbridled pleasure as his pace increased and Colin began to pant heavily with his efforts. "Oh, God, Daddy!" Katie cried out. "I can feel you so deep inside me! I want it, Daddy! I want you to shoot your sperm and put a baby inside me! Do it, Daddy! Do what God made us for and impregnate me!" "Baby," Colin gasped as he continued fucking his daughter hurriedly, "I'm getting close!" "Yes!" Katie shouted. "Yes, Daddy! Fuck me! Oh, God, this feels so GOOD! I'm cumming so hard, Daddy! I want it so bad. I want to feel my father's sperm shooting inside of me! Teach me how it feels, Daddy! Teach me how to get pregnant!" "Ah, shit, honey! I'm almost there! Daddy's gonna cum inside you!" Once again Colin shortened his thrusts, making sure that his penis would be as deep as it could go when it began to spew the contents of his balls inside his daughter's waiting, fertile body. When Katie's pussy walls suddenly clamped down on his shaft, tighter than ever before, Colin felt himself tilting over the edge of control. "Oh, FUCK! Here's comes, Katie! I made you and now- AH SHIT!- now I'm gonna make another inside you! FUCK! I'M CUMMING!" Colin pressed his groin as far forward as he could, feeling the soft, pliable skin of her ass mold to the shape of his thighs. He closed his eyes tightly and felt his balls seize up, his cock expand with pressure and, in a flash, his orgasm struck. Ribbons of incestuous seed poured into his daughter's fertile womb, filling her young channel to capacity as he unloaded his potent sperm inside of her. The orgasm wracked his body without mercy for a full minute, causing his cock to jerk and literally vibrate as it belched out slug after slug of white, greasy, sperm-filled cum into his daughter's chamber where their baby would be made. His mind blanked out entirely, pushing all other thoughts away, and filled itself only with the euphoric bliss of knowing that, right then and there, he was breeding his own daughter, the most beautiful fruit of his loins. From one would come another! When his orgasm finally subsided, Colin collapsed over his daughter's back and they both panted heavily. His cock was still firmly lodged inside of Katie as Colin slowly began to regain his senses and mental faculties. After a moment to catch his breath, he reached for Katie's purse. Normally, he wouldn't go rifling through his daughter's purse for any reason- a respect for such things that had been ingrained in him since childhood- but after what he'd just done, Colin figured that privacy was surely a secondary notion between himself and his daughter. He opened the purse up and searched inside it. A brush, her wallet, keys to the car he'd given her last year, breath mints and a few other random items he expected to find in there, but no bottle of pills. Katie's aftershocks continued to ripple through her body, causing Colin's penis to remain hard and the head still stuck inside his daughter's cervix. He tried to pay it no mind as he again searched through the purse. With a dread horror he leaned back over his daughter's backside, trying to ignore the scent emanating from her freshly cum-filled hole and the erotic scent of her skin, and said quietly in her ear, "There's no pills in your purse!" Katie jerked as though she'd been hit with a cattle prod and immediately snatched the purse from her father's hands. Even while her body continued to convulse in post-orgasmic shocks, feeling her father's large penis still snugly held inside her tight, teenaged body, she performed the same search as her father. "What? That can't be!" she said in a panic. "They've GOT to be in here!" She started to search one more time and then suddenly stopped, her head snapping up in memory. "Oh, shit. I left them in the locker room." "What?!" Colin cried out as he stood up. He still couldn't pull his engorged cock out of his daughter for fear of hurting her. Instead, he planted his hands on her hips firmly. "Katie, I just came inside of you! Unprotected! And- and you said that this was your most fertile time!" "I know!" Katie said dejectedly as she threw her purse across the office in frustration. "I can't BELIEVE I forgot to get them out of my locker!" By that point, Colin's erection had subsided enough that he could safely withdraw himself from Katie's over-filled pussy. He looked down at the white streaks on his half-hard shaft and watched with horror as a large globule of his sperm-filled seed started to seep out past his daughter's labia. "Katie..." he looked up at her with fear in his eyes. "What're we gonna do?" Katie looked back at her father, rolled over and then placed a loving, gentle hand on her tummy. She regarded her nakedness for a moment and then looked back up at him. "Name it after you or Mom?" "OH MY GOD!" Colin shouted as he smacked his forehead with his open palm. "I KNOCKED UP MY DAUGHTER!" Katie swiftly sat up and hugged her father in a loving embrace, her warm breasts pushed against his sweaty stomach. Even as she did so, she felt her father's sperm shift around slightly in her tummy, the warmth of it spreading inside of her. "Dad! It's NOT the end of the world, okay? IF I get pregnant, I'll be out of school before I start to show. And, hey, then we can practice all we want, right?" Colin shook his head in disbelief. "Honey, there's no WAY you're not pregnant. I haven't had sex in six years! You just had SIX YEARS worth of backed-up cum shot directly into your womb! By your own father! Doesn't that bother you?!" Katie looked down at her tummy again, this time in contemplation. Finally she said, with a warm smile, "It's what we're made to do, Daddy. And, really, you're a great father. You've proven that already. I guess maybe it's time to prove it again. With someone else I might be bothered by that, but with you? You're the best Daddy I know!" "I don't know, honey..." Colin started to lamely respond. Katie put a silencing finger to her father's lips and said, "Shh!" She leaned in and kissed him deeply. "I do." After their kiss broke, she looked back down at her father's spent member and smirked. With a playful grin, she looked back up at him and said, "Well, it's not like I can get MORE pregnant, Daddy. Wanna get some more practice?"