A Girl and Her Tentacle Monster: Give and Take

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#6 of A Girl and Her Tentacle Monster


For those of you familiar with the first incarnation of this series, I know it seems like I'm delving into the same kind of multiple partner territory that got me in trouble then, but I plan on this being the most complicated of the installments barring unforseen difficulties. I'm not entirely sure I got it right, but I can't think of a better way to do it. So here it is. :3


It's always so frustrating when you're having a nice dream, then wake up and forget everything but how much you liked having it.

I wasn't too disappointed in waking up, though. At some point during our nap I had managed to position myself at Mommy's nipples, her warm milk gushing down my throat the first thing my brain recognized when it came out of the fog. Her boobies had swelled even bigger now, almost three times larger than they were before I had gotten her pregnant. At the same time I could feel Mia still snoring soundly against my tummy while I ate. Mommy patted my head when she saw I was awake, scritching behind my ear to make me mrrr.

"I was wondering when you'd wake up. You've been eating for nearly an hour. I was sure you'd have drained me dry by now, but it looks like I'll be making plenty for all our babies in no time." It took me a bit to notice that Mommy's face was no longer coated in a thick layer of my cum. From what I could see, her fur was actually quite dry and clean. Aside from the milk dribbling down from the sides of my muzzle, my fur looked that way too. But I could still feel it against my skin. Taking one of my paws, I ruffled Mommy's fur a bit to see what was beneath it. All I got was a huge dose of pheromones and a need to cum again. Maybe it'd all soaked in?

I yipped in surprise and a lot of pleasure when I felt something move inside my tummy. Pulling away from Mommy's nipples, I rolled so that I could look at it better and was shocked to see that my already huge belly had grown out at least another foot! Mommy and I waited for a minute or two before the sensation returned and I saw a shape moving inside me, rocking Mia a bit as it moved about. It wasn't a led or an arm. It had to be a tentacle.

"Mommy, did you see?! My babies are moving around!" Mommy's mouth hung open in surprise. "Already?" She looked down at her own bloated stomach, patting it lovingly, and I could see that it was at least a little larger than when I had mated Mia. When she didn't say anything, I offered a suggestion. "Maybe these babies grow really fast?" Mommy nodded, and I could see she was drooling. "What's the matter Mommy?" She giggled and looked at me, wiping the drool from her muzzle. "I was just thinking that, if the ones you put in me grow as fast as yours, we can mate again really soon. Would you like that?" I nodded vigorously. "Yeah! I love you so much Mommy. I want to mate you and make babies as often as possible!" Mommy shuddered in response, her privates growing wet and her scent getting much stronger.

"Now honey, your father will be getting home any minute now. I think the three of us should help him feel as good as we have. What about you?" "Right! I love Daddy too, so we need to share. But how can we do that without him getting scared?" Mommy patted my head and got up, giving me a really good look at her naked pregnant body. She was so beautiful with her beach ball sized stomach and boobies larger than her head. I knew I wanted to keep her looking like that for as long as she'd let me. "Don't worry, honey. Just let Mommy take care of everything."

Unconcerned that she was prancing about completely naked, Mommy made her way out of the bedroom and headed downstairs. I shook Mia, wanting to follow Mommy to welcome Daddy home, and finally got a response. "Mrrrr...more milk please..." Clearly not awake, I shook her harder. "Come on, Mia, wake up. We're gonna miss Daddy." Finally her eyes fluttered open and she rolled to her side. But instead of getting off me, she rolled further up my body. Her half-lidded eyes said she was still mostly asleep, but she seemed very determined to keep me where I was.

"So...thirsty..." She licked her lips and leaned in, her muzzle wrapping around my right nipple. I hadn't noticed until then, but my boobies had gotten bigger in my sleep. They were at least a B cup now! That happiness was quickly overtaken by Mia's first suck. My nipple was so hypersensitive after all the growing that I came right away! "Oh, goddess, Mia! I don't have any milk yet, but don't stop!" My babies squirmed around in my arousal, tickling me from inside while Mia kept going.

Frustrated by getting nothing, Mia went for my left nipple after several tries and did the same thing to the same result. I couldn't believe how good it felt! She went back and forth, sucking hard in her attempts to get her drink, all the while driving me crazy. It was so new, so weird, but so...wonderful. I was glad my babies were growing fast. I couldn't wait to start feeding them my milk. They seemed to like the idea as well, the twisting around continuing. There were so many of them!

Mia released my other nipple, panting and mrrring. "Please, so thirsty..." I rubbed my paw along the side of her face, seeing her need. "I don't have any milk yet. Sorry, sis." Almost in response to her sad, desperate look, my cock grew back out of my tunnel, hard as ever and ready to go. I gasped at the increase in demand, quickly getting to my feet and hopping up on the bed. "I do have plenty of cream. Would you like some?" Mia scrambled towards me, kneeling before my cock. My tummy was so big I couldn't see what she was doing, but I could hear her licking her muzzle frantically while I watched my babies make shapes in my hide.

"Suck on the tip like a lollypop, but be careful of your teeth. That stuff that's coming out now is pretty tasty, but you'll get lots of cum if you suck long enough." Mia's paws grabbed on to my cock, their size not even enough to wrap around and touch fingers, and guided the tip to her muzzle. I could feel her belly brushing up against my foot paws, so I rubbed it as best I could. For a while she was content to lap up the pre flowing from the tip, but soon I felt her muzzle stretching around it.

Her tongue slurped all around the thick rod, stimulating it to release more pre. Mia gulped it down like she'd never get any more, rocking her head back and forth to try and get more of my cock inside her muzzle. She might have been new at this, but Mia must have inherited Mommy's skill at playing this game. It was almost as if she knew exactly what to do, and I was loving every moment.

Sounds from downstairs caught my attention while Mia worked. I could hear Daddy's voice, Mommy greeting both him and Jenny. I couldn't really make out what they were saying, but I made sure to hold down my moans so Mommy could do whatever it was she planned to to get them to join in. I knew that Daddy and Jenny wouldn't notice Mommy was naked and pregnant, but I wasn't sure if they could hear me and Mia.

When the tip of my cock began pushing its way into her throat, Mia shifted positions. Straining to see, I could barely make out her bottom half. As far as I could tell, she was using her legs to push back and forth while resting on her cum-filled belly so that my cock would have a straight shot down her throat. I could feel the stream of pre flowing out the tip, and Mia swallowed it all down like a pro. Soon enough, the tip went past her throat and into her esophagus, Mia pulling back and taking a deep breath before forcing almost a foot of cock down into herself.

I felt a barrier inside Mia similar to the entrance to her and Mommy's wombs, but this one seemed less insistent on keeping me out. Mia was trying to get me to cum in her stomach?! From how far gone I was, she'd get her wish really soon. Straining to see what she was doing again, I could barely make out her legs as she backed up, gasped for air, then forced herself down again. She kept backing up and scooting forward, taking a breath every so often, with the single purpose of making me cum. I could hear her mrrring, and I figured I must have pumped at least a gallon or two of pre into her. Where she was gonna put all my cum I had no idea.

The tingling in my cock grew in intensity, and I hissed through clenched teeth. "M-Mia, oh goddess, I'm gonna cum! Gonna...cum...!" I tried to hold back, knowing it wouldn't last long. Mia pushed forward extra hard and forced the tip through the barrier to her stomach, her nose pushing into my crotch. The sensation put me over the edge, and I was unable to hold back a screech. It filled the room and echoed down the hall while my cock began filling Mia, my babies writhing around madly as my orgasm neared. My knots grew, locking the tip into her stomach and the base into her muzzle, just before the dam broke.

My cum felt almost like paste as I forced gush after gush into her hungry maw. I could feel her cumming, her shaking making my own orgasm even better. Each spurt of cum took what felt like ages to start near the base then force their way out the tip, each one increasing the pressure inside Mia's stomach. My whole body clenched with each spasm, pushing with all its might to send the thick globs of my semen into my sister's body. With how much I was giving her, I wasn't surprised when I felt her rising up again after a while. I couldn't wait to see how big she'd be once we finished!

When it felt like I was starting to come down, Mia suddenly stuck one finger in my tail hole and another into my tunnel alongside my cock. What caused her to do this, or how she knew what it would do, I had no idea, but it rekindled my orgasm. I bucked in joy, unable to make words as my brain overloaded again. Cum came out faster and in greater amounts, swelling her tiny body even more while the inside of my belly became a mass of tentacles stretching it in all directions.

Finally my cum began to slow. Each push became smaller, each spurt swelling Mia less. I gasped for breath, feeling my knots shrink and my cock pull out of Mia and return to my tunnel. When it did so, I felt a splash of something warm and sticky over my crotch. I shifted so I could see Mia, getting a face full of cum when I turned towards her. When I tried to wipe it away, I got another, and then another, soaking my face in my own cum and what smelled like Mia's drool.

Turning away, I managed to clear my eyes and look again. Mia was a sight to see. More than twice as big as before, the bulge of her tummy had been joined by that of her stomach to make her look almost like a furry orange balloon. It was simply too much for her to hold, her body wracked with orgasmic convulsions that caused her to throw up huge amounts of cum. Already her front was soaked, as was part of the bed and me, plus there was a quickly growing pool on the floor. Her eyes were unfocused, but I got the feeling she was disappointed she couldn't hold it all.

Suddenly very hungry, as if my babies demanded they be fed, I got off the bed and moved towards Mia. Moving close was hard now that we both had huge bellies, but I managed it and gave her a big kiss. The next gush of cum went right into my muzzle, and I drank greedily. I was right. It was far thicker than before, and I could feel my sperm wriggling around as they passed into my stomach. Another helping of cum was forced into me by Mia's next spasm, followed quickly by another while I still struggled to swallow the second. I gave up trying to get it all and just enjoyed the feeling of Mia feeding me my own cum while the both of us were soaked in it.

Mia was the first to say something when cum stopped pouring from her muzzle. "Thank you..." Despite losing all the cum her body simply couldn't hold, she was much bigger than before. She'd lost a bit more than half of her second swelling, but it still made her look massive since she wasn't very big to begin with. The change in her shape made it hard to tell, but I also was pretty sure her hips had widened and her boobies had grown. Maybe she was so hungry because her body was changing to better birth our babies?

My eyes went wide when it occurred to me that I'd been really loud at the end. I looked over at the doorway, but saw nothing. Straining to hear, I was pretty sure I could hear Mommy and Daddy talking still. I relaxed a little when it seemed I hadn't ruined everything, feeling Mia running her paws all over me to rub in the new layer of cum we were covered in. I returned the favor, savoring the feeling of my hot, sticky cum squishing through my fingers as I rubbed it through Mia's soft fur.

Mia and I both heard the sounds of footsteps, lighter than either of our parents. Soon enough we saw Jenny poke her head in the door, a glass of milk in her paw. "Dad said he'll be up to check on you in a moment." I nodded and smiled. "Thanks, Jen." Jenny continued towards her room, totally unaware of the situation. So it wasn't just sight and probably touch. Smell and sounds were blocked too. Apparently whatever my lover had used to keep our playing secret was protecting me and anyone I mated.

I had Mia help me back up on the bed after we had finished, instructing her to begin working on the pool of cum on the floor. "What should I do with it?" I wasn't sure why, but a new idea popped into my head. "Spread it around, especially around the door and the bed." Mia looked at me funny, but shrugged and went to work. She was so cute! She waddled about while holding her huge belly, scooping up big globs of cum and rubbing it along the floor and the walls, the smell becoming very potent. When she would bend over, almost always doing so to give me a good look at her privates, I could see she was getting more and more wet. It made me very happy knowing Mia liked what had happened and would happen again soon as much as Mommy.

Shortly after Mia finished, Daddy made his way up the steps. He still had on his work clothes, but it made him look even better. Mommy was right behind him, still naked, and I was sure both her tummy and boobies had gotten bigger yet. "Hi, sweetheart. Feeling better?" "Hi Daddy." He gave Mia a hug and kiss before heading over to me, sitting on the bed and holding my paw. "You certainly look chipper." Feeling my forehead, he got a small look of concern on his face. "You're still pretty warm, though."

Daddy leaned forward to give me a hug and kiss like he always did, and I could feel my heart racing. I hadn't even thought about Daddy this way before this morning, but now I wanted him to mate me more than anything else in the world. Glancing at Mommy, I tried to figure out what she was thinking behind that knowing look. Whatever she was up to, it was going how she wanted it to. I just hoped Daddy would come around before I burst into flame!

His hug was tight and comforting like it always was. My big, strong Daddy's arms made me feel safe every time he wrapped them around me. This time, though, I could hear him sniffing slowly, his own heartbeat increasing at the same time his musk got stronger. After far longer than he normally did, he pulled away from the hug and kissed me on the cheek. Like the hug, it went on much longer than normal, his paw stroking my arm. When he finally ended that too, he stopped only a little ways away. I immediately remembered what had happened with Mommy, smelling his excitement and knowing what I was supposed to do. I felt his paw rubbing the massive dome of my tummy and saw his tongue licking along his muzzle, his eyes adding a layer of lust to the love already present.

When he leaned back in, I let him do as he wished. He kissed the top of my muzzle, the paw not rubbing my tummy moving to the back of my head. It was several seconds before he pulled away, but he quickly leaned down and gave me a full kiss on the lips. I couldn't help but moan, grabbing his head and holding him close as he did the same to me. I let his tongue into my muzzle, sticking mine into his while we tasted the inside of each others mouth. I immediately recognized Mommy's milk on his tongue, but I didn't care. It was finally happening!

For more than a minute we kept at it, pulling away when it got too hard to breathe. "I love you, Daddy." I nuzzled under his head the way Mommy had to me, taking in his smell and guiding one of his paws to my boobies. I could only gasp when he began kneading, the sensations causing small orgasms to run through me. His other paw teased my belly and down near my privates, making me squirm and mrrr. I was so jealous of Mommy. It was clear that Daddy knew exactly what to do to make a female go crazy.

"Honey, don't tease the poor girl." Mommy knelt down next to Daddy, pulling him in for a kiss and standing him up. I could see his pants straining to contain his cock, his heartbeat causing it to pulse rapidly. I watched at Daddy kissed back, his brow furrowing before his paws moved down to Mommy's tummy. "Kelly...what...is this...?" Mommy gave him a mock stern look. "I would think you'd know by now, Ian." He looked at her stunned, moving his hands to her boobies and squeezing, getting a spray of milk. Mommy mrrred happily, Daddy unable to help himself as he leaned down to begin nursing.

"Mmmm, that's right, hon. Drink up. I'm making quite a lot now that I'm pregnant again, so have as much as you like." Daddy gulped down several mouthfuls before pulling away. "You sneaky little vixen, you've been feeding me and Jenny your milk again." Mommy laughed and patted her tummy. "Not so little right now, honey. Mia, come over here and help your father out of his clothes, would you?" He turned to look at Mia, and his eyes widened. He quickly glanced over at me, then back at Mommy, who grinned. "Surprise! It's been a very interesting day."

It wasn't long before Mia had him naked from the waist down. His nine inch cock was very hard and ready, pre leaking slowly with every heartbeat. Mommy grabbed his shirt, pulling it over his head, and Daddy was as naked as we were. I licked my lips, my mouth suddenly extremely dry and my eyes fixed on my Daddy's sexy body. Sliding off my bed, I knelt between Mommy and Daddy as he drank from Mommy's boobies, grabbing his cock in my paw. "Daddy, I'm feeling really thirsty. Can I drink your cum?"

Mommy yipped in pleasure while Daddy's cock leaped in my paw. "I'd say that's a yes, sweetie. Remember what I showed you." My tail swished happily and I went for it, licking the tip of Daddy's cock for a bit before opening wide and taking it in. It was a lot different from my lover's tentacles, much harder and hotter, but I loved it all the same. I was sure I could taste Mommy on it too, but in a different way. Almost like he'd been inside her so much that his cock had taken on a bit of her scent. Maybe that's what my teacher meant by "marking" someone as your mate? I took a deep breath, filling my nose with my Daddy's powerful musk, wanting him to mark me like that so badly I could explode.

My belly was so big now that I found it easier to lean on it, rolling forward until I was able to straighten out to give Daddy's cock a path down my throat. I'd seen Mommy and felt Mia do it, and I knew why they did. The feeling that any moment Daddy could ram the entire length down into me was immensely arousing. My own excitement got my babies moving again as well, their frantic movements causing me to bounce and jiggle while I positioned myself properly. I let his pre pool in my muzzle for a bit before swallowing it down, repeating it several times while I worked his cock deeper inside.

I could feel the tip reach the back of my throat, knowing immediately why Mia had gone so fast. The tickling went right into my brain, and I had to suppress the impulse to go quickly. I did my best to do what Mommy had done to me, pulling back and slurping all around it before pushing it back down over and over again. Hearing Daddy's moans and gasps through his slurps made me feel like I was going to burst with pride. I was making Daddy happy just like Mommy did!

Pulling off completely, I savored the taste of his juices as I licked my muzzle, admiring the cock that had made me and my sisters inside Mommy's tummy. It glistened in the light and throbbed hard, pre coming out in spurts now. I rubbed the length with my paws, stroking enough to stimulate Daddy but not enough to get him any more aroused. I kept it up until I felt one of Daddy's paws wrap around my head and pull me closer, happily opening back up to let him slide back in.

I could see Mia watching me jealously from the side, so I motioned her over. She moved around behind him, rolling onto her belly like I had until she reached Daddy's furry balls. His cock jumped forward when she licked, forcing its way down my throat at last. Going with it, I swallowed it all down until my nose pressed into his crotch. I mrrred past his cock, feeling it throb and leak deep inside of me. My tongue began fighting with Mia's as we licked Daddy's balls, his hips bucking forward to shove his cock a tiny bit further into me every time. I swore I could feel his cock growing a little after every throb, the tip moving further into me.

"Go ahead, honey. She wants you to. Show her what you do to me every night." Mommy's words got Daddy moving. He pulled away from her boobies and straightened up, putting his other paw on my head and gripping tightly. He began to thrust in and out, slowly at first but quickly gaining speed. My spittle went everywhere, soaking his crotch and my face as I felt him growing bigger faster. His balls kept hitting me in the chin, and I was sure they were getting bigger too. "Ahhh, damn, Fina, you really are just like your mother!" Daddy's praise sent a shudder through me, nearly making me miss the increase in the amount of pre Daddy was making.

Remembering Mommy's actions, I wrapped my paws around the base of Daddy's cock and pressed into the tube along it, stopping his impending orgasm right near the plateau. Daddy growled and bucked harder, frustrated but loving it. "Dammit, Kelly, you tease! You taught her that too?!" Mommy knelt down next to me, wrapping her paws around my boobies and massaging them. "Of course I did. Why wouldn't I teach our girls the proper way to bring any male to heel?"

Daddy's cock was definitely much bigger now than when I'd first swallowed it down. At first the tip was about level with the top of my boobies when I pushed it all in, now it had grown past their bottom. The thickness was greater too, my jaw stretching wide to take it all. His balls were also bigger, growing from about golf ball size to bigger than baseballs! They were growing even faster now, the growth increasing every time I felt him jerk and try to cum in my mouth and fail thanks to my grip.

Mommy leaned in and whispered in my ear. "You're doing great, Fina. You've almost got him. Don't let up until he begs for real. I think you'll learn something new about your father that you'll really like." Between her massaging my boobies, sucking on my Daddy's cock, and holding him right before the point of greatest pleasure, I couldn't help it as many mini-orgasms rippled through my body. My shaking only made Daddy whine in need, but I held firm like a good girl.

"Kelly, please, I have to cum...!" "Don't look at me. Fina's the one you should be begging." I felt his grip tighten on my head as he whined again. "Goddess...first I lose to your libido, then to my own daughter's. Come on, Fina, let Daddy cum!" Smiling to myself, knowing I was doing it right, I kept it up just like Mommy had told me. Now, I want you to know I wasn't trying to be a bad girl. I know good girls listen to their Daddies. But I also knew that this was part of the game. Daddy didn't really want me to let up just yet. He was saying that to make it more fun for both of us. And BOY did it ever!

Daddy's hips thrust faster and harder, his growls and whines getting more frequent. "I'm going to burst, Fina! I need to cum in that sexy mouth of yours!" His balls were at least the size of grapefruits now, his cock getting even thicker and longer in my throat. Part of me wondered how big he would get, but the rest of me concentrated on playing the game right. I could almost feel he was getting ready to beg properly, and Mommy moving one paw down to my sopping privates to play hinted I was right.

"ARGH! Please, Fina! I'm begging you, let me cum! Daddy needs to feed you his sperm! PLEASE!" Mommy sunk one finger into my tunnel, and I knew it was time. I released my grip as Daddy thrust all the way in and held me there. His knot grew quickly, locking his cock inside my jaw as I felt his cum start to flow into me. It felt almost like a fire hose had been turned on in my stomach, Daddy's hot sperm spurting down my throat in pulse after pulse. I swallowed quickly, letting the sticky seed that had made me in Mommy's tummy fill me up. His balls contracted again and again, each one sending ever more cum down my throat.

Daddy's hips and body jerked about madly in his orgasm, jolting me about while my head was tied to his crotch. His howls of pleasure echoed out, his orgasm feeding mine even while I felt my belly stretch slowly with cum. It wasn't as much as when I would cum, but it was still a lot. By the time his orgasm started to slow down my stomach had swollen at least a foot to join my now gigantic belly. I panted through my nose, somehow able to breathe even with his huge cock stuffed down my throat, while we recovered from the experience. Mommy helped me move with Daddy when he sat on the bed, one of his paws rubbing my ears lovingly.

"Now you get to experience your father's special skill firsthand, sweetie. Mia and I are going to check on Jenny. You two have fun until then, hmm?" I furrowed my brow as I tried to figure out what Mommy meant for at least a minute after they left, my eyes finally catching Daddy's still hungry ones when it hit me. Daddy hadn't lost a bit of his excitement at all! I knew from seeing him and Mommy play and from school that his knot would stay like this for a while, but everything I'd been told said the male would need to rest after mating. Daddy was ready to go right away!

I wouldn't be able to move as much as before with his knot locking my head in place, but I knew Daddy and I would be having lots of fun...