About a month ago myself, my wife and our two kids - a son and a daughter - were having Sunday breakfast. Callie, our daughter, casually mentioned that her birthday was coming up shortly. I say casually, but I think she had it planned. "Oh really," I teased her, "your birthday is near?" My wife and son also started with the teasing. Callie got an I-don't-believe-this look on her face. "Come on guys. It's my birthday, and, you know, I really want to do something special." I looked at my wife, she looked at my son and he looked at me. We all started to smile, and then looked at Callie. We knew what she wanted since she had been leaving hints for over two weeks, but we weren't going to let her get away that easy. "And what might that be?" we asked together, still wanting to give her a bad time. Then, laughing, we answered ourselves. "A fucking gangbang!" Callie gave us an eat shit look, and then she too started laughing and said, "Fuck you. Fuck all of you." Now this may all sound a little strange: sixteenth birthday gangbangs, kids swearing, etc. So let me introduce my family and provide some background on our lifestyle. I've known my wife Nell my entire life; she and I are fraternal twins. We began playing with each other around ten years old, not really knowing what we were doing, but having a lot of fun. One day our mom caught us and we thought we were in big trouble. But after mom and dad talked, they taught Nell and I all about sex by having us watch them, by having sex with us, by Nell and I having sex and eventually the entire family fucking. It just seemed natural for Nell and me to live together. After high school, we went to college and then decided to start a family. We tell everyone we are married just to keep things quiet. Callie was our first born. There were no problems and she is a normal kid. That went so well that about a year later we had another child, our son Mike. Again, no problems; we were very lucky. We decided to raise our kids like we had been raised. When Callie was twelve and Mike eleven, we started teaching them about sex. Nothing too wild at first, just showing them where things were and what they are called. Mike and Callie took to it like naturals, which pleased Nell and me a lot. It wasn't long until the whole family was fucking. We also laid down a few rules for the kids to follow. Aside from the obvious ones of keeping everything quiet, inside the house was declared a no clothes sex free zone. Basically, we were naked and could have sex at any time with any one. I remember coming home from work one day and finding Mike at the computer with a raging erection. He was looking at some sex site. "What's got you so turned on?" I asked, taking off my clothes and starting to rub my cock. "Look at this dad," he replied, pointing to the screen. "This guy's ass fucking this girl while she's shitting! It's disgusting, but it's making me hard." "No shit," I said, bending down to get a closer look, not really thinking about the pun. Mike was right. The girl was taking a shit and getting fucked at the same time. Nell and I had never engaged in any piss or shit play, although we had talked about it at different times. "Oh my God, that is hot." My cock was getting harder and Mike looked like he was about ready to explode. I spun the chair around so he was facing me, knelt down between his legs and said: "Let me take care of that cock for you." I swallowed his entire cock in one move, then started bobbing my head and sucking as hard as I could. Mike started to moan, and I knew he was close to cumming. My head was moving faster and I was sucking harder until Mike let out a loud ugh and started to fill my mouth with his hot seed. He's young, so he cums a lot, but I've given him many blowjobs, know what to expect and swallowed it all. "Gee, thanks dad. That was awesome." He glanced at the screen, where the guy had just come in the girl's ass. "That's so fucking hot!" "Yes it is," I agreed, standing up, stroking my cock. Mike opened his mouth, stuck out his tongue and asked me to feed him. There's nothing I like better than filling my kids' mouths with sperm, so I quickly moved in position and began jacking my cock faster. When I got close to cumming, I laid my cock on my son's tongue, where his hot breath drove me over the edge, and I coated his mouth with thick hot spunk. "Mmm, good. Thanks Dad," he said, swallowing. I was so proud, like father like son. We walked into the kitchen and found Callie sitting on the counter, her legs spread wide, with Nell's face buried between Callie's legs. "Oh God Mom! Eat my cunt, make me cum!" We could hear slurping noises coming from Nell. And from the way Callie was bouncing around, it looked like she was about to cum. I was getting hard again watching this, and when I glanced at Mike he was rubbing his cock to hardness. He decided to take advantage of his Mom's position, moved behind her and buried his cock into her cunt. I climbed up on the counter, straddled Callie and started to fuck her mouth. It wasn't long until Callie came, her toes curling, her body twitching and her cum soaking her Mom's face. Seeing that, I unloaded into her mouth, and she happily drank it all. Mike was fucking his Mom like there was no tomorrow, then, with a loud grunt he pulled out and covered her back with his seed. Callie and I immediately started eating his cum, sharing it between us as we went. When we were done, Nell turned around, her face still wet with Callie's juices, and said "Now that that's done, let's eat dinner!" That's pretty much how our lives are. We walk around naked, fuck who we want when we want and have a lot of fun doing it. And that brings me back to Callie's sixteenth birthday and her wanting a gangbang. It was no secret as to what she wanted; the only problem was finding the guys. Callie wants at least six guys in their early twenties who can, as she put it, "fuck me till my cunt is raw." If that is what my daughter wants, then that is what I am going to give her. I went to one of the local college frat houses, figuring that frat guys aren't going to be too particular about who they fuck. I was right. Once I had showed them a picture of Callie, there were more guys than what I needed. I picked six, set up the time and place with them, then headed home to get things ready there. I converted our family room into a "Gangbang Chamber." All the furniture was moved out, the carpet covered with plastic sheets, a bed frame and mattress placed in the middle of the room and then cushioned mats put around the bed. I also set up a surveillance system so the entire gangbang could be recorded. Today is the day. It is my daughter's sixteenth birthday, and starting at four this afternoon, she is going to get the fucking of her life. The guys arrived on time. I went out to greet them and to make sure it was only the six I had picked. I brought them into the "chamber" where they quickly undressed and got ready. It was the first time I saw them nude and it was impressive: all of them were well hung, but the two black guys were huge and one white guy had balls the size of a softball. Callie's going to love this, I thought to myself. Wearing nothing but a white robe, Callie entered the room, looking over the guys with her wildly hungry eyes and letting them get a good look at her. "Hi guys," she said, a big smile on her face, "wanna, you know, fuck?" All together they told her happy birthday, and then sang the birthday song to her. She listened, acting a little embarrassed and looking coy, making herself even more appealing. When they finished, she thanked them and began to take off her robe. She was quickly stopped. "Let us do that," one of the guys said. All six of them circled around her, where she had twelve hands sensually caressing her, sending waves of sexual energy coursing through her body, making her heart beat faster, her pussy wetter and little beads of sweat pop out on her forehead. "Oh God," she moaned, "that feels so fucking good." By this time, the robe was gone and she was in front of them, completely naked. Their cocks, like guns, were pointing directly at her, waiting for the action that would set them off. She looked hungrily at each of them, knowing what was going to happen, thinking about all her holes being filled, and just wanted all of them to unmercifully fuck her into oblivion. "I want you now," she said to them so lustfully their cocks twitched. It was all they needed to hear, for then the fun began. The guys lined up in front of Callie. "On your knees, bitch!" the first one said. Callie did as she was ordered. His cock was inches from her face, bobbing as blood was being pumped into it. "Suck it." She opened her mouth, moved toward his cock, grabbed it with her hand and started to suck. "NO!" he said sternly, "no hands." Callie quickly let go, clasped her hands behind her back and swallowed his cock. It wasn't long until he turned to the guys behind him and told them, "Holy shit, she sucks cock real good." Callie's head was bobbing up and down on his hard dick, sucking and licking it to an incredible hardness. She blew him until he almost came, and then moved on to the next guy in line, doing the same thing to him, taking him to the edge of orgasm. One of the black guys was next. His cock was close to ten inches long and two inches thick. Callie looked at it, then looked up at him and said, "Jesus, you got a big fucking cock!" He looked down at her. "Can you handle it?" "I'm going to, you know, try." Saying that, she lunged onto his cock, getting almost all of it down her throat before she started to gag. Backing off, she relaxed a little and tried again. This time she got all but about an inch into her mouth, which was all she was going to do. She then gave him one of the best blow jobs ever. Finally, she had blown all of them, and the first guy was back in front of her. She was still on her knees, her lower jaw, throat, tits and stomach soaked in the spit that had been flowing from her mouth. "Now it's our turn," he said, grabbing the back of her head with both hands. Callie knew what was coming. She opened her mouth and tilted her head back. "Fuck it like a dirty cunt," she told them all. This is exactly what they did. The first guy buried his cock down her throat, grabbed handfuls of her hair and slammed his cock into her mouth as hard as he could. All you could hear were the slurping noises coming from her throat as he fucked it. The spit was running from her mouth and her eyes were starting to water. He fucked her almost to cumming, and then backed out, his cock drenched in her spit, long strands stretching from it to her mouth. When the black guy with the twelve inch cock got to her, she took control and told him, "Fuck me as hard as you can. Make me fucking puke, I don't give a shit. I just want to feel that long fucker down my throat fucking it!" "Okay, you asked for it," he said. In one vile move he shoved his entire cock down her throat, his balls ending up against her chin. She instantly started choking, gagging noises coming from her throat. He held her there, keeping his cock deep in her. "Take it you bitch," he tells her. Finally, he lets go and takes his cock from her mouth. Callie gasps for air and at the same time vomits a stream of yellow bile. All the guys start whooping and hollering. Callie is now on her hands and knees, looking at the puddle of vomit on the floor. Some of it has gotten into her hair, and she is trying to recover from the throat fuck. After a few minutes she looks up at the black guy. There is spit and puke dripping from her chin and running down onto her tits, her eyes are still wet from the tears. She smiles and boldly asks him, "Is that all you got motherfucker?" For the next twenty to thirty minutes Callie is violently mouth fucked by all six guys. It's a continuous cycle of them fucking her till she pukes and then her asking for more. When it's over, the entire front of her body is covered in spit and puke, her hair is matted and her jaw is so sore she can barely open her mouth. And, although it's hard to tell with all the puke and spit, she came so much her inner thighs are covered in pussy juice. The guys give her a fifteen minute break. She drinks some fluids, cleans up and tries to rest for the next onslaught she is about to endure. When she comes back into the room, she is ordered to suck the guys to hardness and then get on the bed. And although her jaw is aching and her throat sore from the fucking she just got, Callie sucks each of them so hard they are erect in seconds. Of course, they also know they are about to fuck this hot piece of sixteen year old ass, and that also contributes to their excitement. "Are you going to, you know, fuck me know?" she asks them. "Yes we are. Get on the bed and spread your legs." She lays down on her back and shows all of them her cunt, the swollen lips hanging loose and soaked in pussy juice. With both hands, Callie pulls open her cunt as wide as possible, showing the guys how pink and wet it is. She starts finger fucking herself and says: "My fingers are good, but I need a big hard cock to fuck this cunt! Who's going to be first?" "I am," says one of the white guys, quickly moving in between Callie's legs. The rest of them start urging him on, telling him to fuck her good. He does just that, pounding Callie in an almost uncontrollable rage. He is soaked in sweat, and it rains down all over Callie. She doesn't care, for she is getting fucked harder than she ever has, and there are five more guys who are going to do the same thing. And each of them does. The two black guys fuck her next, their huge cocks stretching her cunt almost to the point of pain, but a good pain. Callie has never felt this full before, and it sends her into a state of sexual frenzy. She screams at them to fuck her harder and begins to fuck them back, pushing her cunt onto their cocks almost as hard as they are shoving their cocks into her. Her orgasms are almost continuous, and the juice is running from her cunt like a stream. The last two white guys reap the benefits from this and get the fucks of their lives. Callie is like a wild animal under them, bucking and bouncing, moaning, screaming and non-stop profanity coming from her mouth. When it's over, her cunt lips are red, swollen and so sensitive that a mere touch can send her into another orgasm. "Jesus fucking Christ," she says, lying on the bed, her upper body soaked in sweat, her legs covered in sweat and pussy juice. "That was fucking intense." One of the black guys looks down at her. "For being sixteen, you are one incredible fucker." "Thank you," she says, smiling, "Daddy taught me well." "No shit he did. But, we have more for you." While she was getting fucked, a girl snuck into the room. She now moved over in front of Callie. "This is Kako." Callie was looking at one of the hottest Asians she had ever seen. About five feet tall, long dark hair in a ponytail and small but full tits with dark nipples. She was completely nude. "Hi Kako," Callie said. "Hey baby girl, happy birthday," Kako said with genuine care in her voice. "How you doing?" Callie couldn't help herself and started laughing. "I've just been, you know, fucked out of my mind. How do you think I'm doing?" she asked sarcastically, with the emphasis on you. "Okay, I deserved that," Kako replied, also starting to laugh. "What are you here for?" Callie asked her, wondering what was going to happen. "Well, baby girl, I'm here to give the boys a break before the big finish, and to introduce you to something." "And what might that be?" Callie asked. "This," is all Kako says. The boys were watching intently, waiting to see what it was and to see Callie's reaction. When Kako showed Callie, all the guys started hollering in agreement, their dicks getting hard knowing what was going to happen and what they were going to see. A cold chill ran down Callie's spine. "No fucking way. I've never done that, and you are not going to get me to do it." Kako smiled at her, and told her in a soothing voice: "Oh, baby girl, I know, it's scary. But, I'm an expert at this. I've done it many times, and all you have to do is tell me to stop and it ends right there. How about it baby girl? It is your birthday, and after all it's just a fist!" Callie thought about it for a few minutes, but eventually the pervert in her won out and she decided to go for it. "Both holes?" she asked, a bit unsure. "Cunt for sure," Kako answered. "Ass if you want." "Okay. I'll decide when we get there. What do you want me to do?" "Just lie back, let me do all the work and enjoy." All six guys gathered around the bed to watch, already stroking their dicks. "First we need to get you good and wet." Kako put two fingers into Callie's cunt, rubbing until she found Callie's G-spot. With her other hand, she began gently pushing and massaging Callie's stomach just above where her two fingers were rubbing inside Callie's cunt. "Jesus Christ, that feels good," Callie says, in between moans of sexual lust. "It's going to feel better," Kako says, massaging a little faster and pushing a little harder. Callie starts moaning louder as waves of sexual electricity start charging through her body. "Oh God! Oh shit! I think I'm going to cum. Holy fuck, I can't believe how this feels. Ah, fuck, I'm cuming, I'm fucking cuming," Callie screams. "That's it baby girl, fucking cum for me. Soak me in your juices," Kako urges. The guys watch as Callie's body begins to tense, her muscles tightening, her heart beating faster and her breathing getting heavier. She is soaked in sweat. Kako continues to stimulate Callie, rubbing and pushing, feeling Callie's cunt muscles begin to contract and knowing she is about to orgasm. Callie's head tilts back, her neck muscles tighten and she begins to bounce on the mattress. "OH FUCK, I'M CUMMING," she screams. Kako moves between Callie's legs, just as her cunt does a violent contraction and a stream of hot pussy juice squirts out all over Kako. Callie keeps squirting until Kako is soaked and the mattress is dripping with her juice. The guys watch in awe as cum squirts from Callie, not quite believing. But, when it was over, they were more turned on then ever and ready to give Callie her final treat. The orgasm was so intense Callie almost passed out, and it takes her a few minutes to recover. "You okay baby girl?" Kako asks. "Yeah, I'm okay," Callie answers. "What in the fucking hell did you do to me?" Kako giggles and says: "I gave you a G-spot orgasm. Did you like it?" "Holy shit, I fucking loved it!" Callie sits up and looks at Kako. "Are you going to fist fuck me now?" "Do you still want to?" Kako asks her. The guys are listening intently, hoping to hear the right answer. They do. "What the fuck, let's go for it." Callie stays sitting up so she can watch. One by one, Kako slowly puts all four fingers into Callie's cunt, moving her hand in and out, gently fucking her and telling Callie to relax. Callie does, and Kako is able to get her thumb inside also. With her entire hand inside, Kako makes a fist and completely fills Callie's cunt. Callie lets out a loud moan. She can feel Kako's hand rubbing both sides of her pussy, sending shock waves through her entire body. With her hand still in a fist, Kako begins fist fucking Callie, pushing in until she hits the back of her cunt and then pulling almost all the way out. It's a fucking Callie has never experienced before, and it is sending her into a state of arousal she has never felt, almost to the point of being sexually hypnotized. By the time Kako pulls her fist from her, Callie is so aroused she will do anything. The guys know this and decide to use it their advantage. They put Callie on her hands and knees and raise her ass in the air. Then they unmercifully fuck her ass for over twenty minutes. When they are done, her ass cheeks are beet red from the guys pounding into her and her asshole is gaping open almost two inches. Callie is worn out. The constant fucking and continuous intense orgasms have left her with no energy. Her whole body hurts, and her cunt is so sore it feels like it's on fire. And now, with her asshole spread open, she feels like she has to shit. She is covered in sweat, puke, spit and pussy juice, but there is one last thing she will receive. Callie is sitting on the floor in front of the bed with Kako on the bed behind her. The guys are lined up in front of them, stroking their cocks and getting ready. "Hey baby girl, it's time for your birthday treat. Are you ready"? Callie looks at Kako then at the guys. "I'm so fucking ready. Give me a hot thick creamy frosting." The first two white guys come up together and pop on her at the same time, covering both sides of her face. As soon as they are done Kako starts smearing the cum all over Callie's face, down her neck and onto her tits. Next is one of the black guys. He covers her forehead and nose with a thick layer of cum, which Kako again smears all over. Another white guy and the other black guy cum in Kako's cupped hands, and she takes the pool of cum and rubs it into Callie's hair, leaving it a sticky mess. Finally, it's the white guy with the softball sized balls. Callie opens her mouth for him, and he cums so much she has to swallow twice to keep from losing any. Callie is a mess, but she is the happiest person there. For over six hours, she got her sixteenth birthday gangbang. It was just what she wanted. She thanked all the guys as they left, gave Kako a special hug and then collapsed from being completely worn out.