A Girl and Her Tentacle Monster: Cumming Together

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#7 of A Girl and Her Tentacle Monster


I ran my tongue all around Daddy's cock as best I could, prompting him to grab my head again and begin thrusting. He couldn't go very far in or out with his knot still swollen like it was, but it was enough to get me going again. I felt every twitch of Daddy's cock, every tiny swell of growth. The blood pumping into it caused the rhythmic and excited thudding of his heart to echo in my head.

Daddy's cock stretched my jaw and throat out so good and wide. His knot was at least twice the size of the rest of it, and I could tell the whole thing was still growing a little. My paws teased his balls, feeling them swell again with more sperm for me. My only regret was not being able to see it all properly. With my jaw so wide I couldn't properly smile when I thought of watching Mommy teach Jenny and Mia how to play with Daddy this way.

While Daddy humped my face and I played with his balls, I felt a strange, tingly but warm sensation in my boobies. I mrrred through Daddy's knot, moving one paw to my boobies and rubbing them. Even if it didn't stop the tingling and wasn't anywhere near as good as when Mia had tried to suckle from me, it still felt really nice. On a whim, I went to one of my nipples. Kneading and tugging on it made everything a hundred times better! My tail flicked about with every jolt the pleasure gave me, and my babies squirmed around happily. The moment I tried pinching, my whole body shook in another orgasm, my juices spilling out onto the floor and the bottom of my tummy.

Daddy's cock jumped in my throat, the tip burying itself into the entrance to my cum bloated stomach. "Goddess...so very much like your mother..." I looked up at Daddy when he said this, his eyes half closed as he sniffed the air. Looking back down at me, he said nothing and reached down to my boobies. Brushing my paw away, his own large paws began rubbing and squeezing my boobies lovingly but forcefully. I mrrred louder and squirmed, grabbing on to Daddy's legs to steady myself. When he brushed a claw along both my nipples at the same time, I saw stars again.

Daddy waited patiently for my orgasm to run its course, kissing my forehead through most of it. "Just as I thought. Your tits are as sensitive as hers." It took him a moment to recognize my confusion, but he just smiled and squeezed my boobies a few times. "These, sweetheart. A fine pair any girl should be proud to have." I blushed through my fur, happy that Daddy liked my boobi- I mean tits. I'd have to practice playing a lot to make sure I got all the names right.

I started sucking on Daddy's cock again, loving how he sent shivers through me as he played with my nipples. I could smell his excitement, the smell of my juices causing his cock to grow even harder in my throat. He mrrred and growled in pleasure, making sure to pay attention to my boo-...tits (see? Practice.) as well. I loved my Daddy! Just like Mommy, he made sure I felt good too. "Fina...I'm getting close again!"

It took a bit to register, but I felt a pressure overtaking the tingling in my tits. They felt heavier too. I could feel Daddy's paws rubbing all over them, and it finally hit me that they were growing again! Really fast, too! I was jealous of how Daddy could see but I couldn't, but the look in his eyes made it worth while. Daddy stared at my growth with equal measure surprise and hunger, and I loved knowing it was my tits and not Mommy's that gave him that look.

The pressure just kept growing, but never got uncomfortable. Daddy's large paws were starting to have trouble covering them completely. Oh, how I wished I could watch them grow! The tingling had moved, starting in my nipples for a few moments before Daddy squeezed my tits roughly. I felt something spurt out of them, watching twin streams of while shoot up and hit Daddy in the chest. I would have jumped for joy if I could! Finally I was making milk just like Mommy!

Daddy's hips bucked into me suddenly, his howl announcing his cock swelling even more before he started to cum again. With the head right in my stomach, I didn't even have to swallow. I still did to help milk Daddy's cock for more sperm. I AM a good girl, after all. Good girls make their Daddies happy.

His balls, easily the size of melons now, contracted again and again to force their contents deep into my body. My stomach joined my tits in their growth, swelling much faster and giving me a wonderfully warm feeling all over. I was sure to drink it all up, knowing my babies would need me to stay fed. The amount was much, much more than he'd fed me last time, but I didn't mind. Daddy kept squeezing my tits, milking me and even getting a few squirts to land in his mouth even through his intense orgasm.

My paws went down to feel my stomach as it grew, relishing the feeling and the stretching of my hide. I wanted to take all of Daddy's sperm. As much as he could give me. If I ended up a big red and white balloon like Mia almost had, then I would be happy so long as Daddy was happy. He still needed to get me pregnant, too! I didn't think Daddy could get me pregnant while I was already pregnant with my lover's babies, but you never know. I just knew I never, ever wanted to not be pregnant ever again.

When my stomach had expanded another foot all around, probably three times bigger than it had been when Daddy filled me up the first time, he finally stopped. He shuddered for a moment before falling back on the bed, panting hard. For a little bit I wondered if Daddy's knot would stay full and he'd cum in my stomach again, but then it shrank slowly. I leaned back, popping it out of my muzzle to admire the girth. Daddy's cock had been big before, but now it was HUGE! Bigger than my arm!

I waited a bit for the cum to start coming back up, remembering what had happened to Mia, but it never did. My body wasn't about to let any of that wonderful cum get away. I looked down, rubbing my now very swollen stomach and even larger tummy while I admired my now much larger tits. Even if the rest of me went back to normal, none of my shirts would ever fit me again. I might have a hard time with Jenny's. Last I looked they were a nice B cup, but now they had to be at least a D! I was as big as Mommy before I'd mated her!

Daddy's cock was still hard and throbbing right in front of me, leaking pre onto my pregnant belly constantly, but I could still hear Daddy panting. I wondered if he was still getting used to being bigger, and decided I would have to start things again. An idea popped into my head again, this reminding me of what I'd seen Mommy do to Daddy when watching them before. Now that my tits were so big, I could do the same thing.

It took me a bit, but I managed to maneuver myself into just the right position. Taking Daddy's cock, I stuck it between my milk-filled orbs and began rubbing up and down. Daddy made so much pre that he quickly soaked my front, causing a sticky *schlurp* when I stroked him with my tits. I watched Daddy gasp and yip, slowly leaning up on his elbows and watching me with a big grin on his face. I smiled back at him and began licking up and down his throbbing cock, loving the taste and mrrring in approval.

"Damn, Fina. You're giving your mother a run for her money. Oh, yes...so nice and warm...firm yet soft..." Even with my tits having grown so big, there was just no way I would have been able to fit all of his cock between them. I licked all along the shaft that stuck out over the top, not wanting it to feel left out, and made sure to pay attention to Daddy's reactions. Like Mommy had done to me, I made sure to go back to those spots he really liked just enough to keep it feeling great.

When I got really into it, I started squeezing harder every so often, trying to mimic what I'd felt Mommy and Mia do to my cock when I'd impregnated them. At the same time I felt the pressure inside my tits rising faster again, and a few strokes later milk squirted all over Daddy! Once it started, its like they didn't want to stop. When I stopped squeezing, milk just dribbled out, but when I squeezed it came out in long streams, soaking Daddy and the bed. The smell made my mouth water, and I made sure to rub as much of it onto Daddy's cock for me to clean off as I could.

"Don't be greedy, Fina. I'd like a drink, too." I looked up at Daddy, who winked at me and opened his muzzle. I missed several times, but eventually adjusted my aim and got several squirts on Daddy's tongue which he licked up and swallowed enthusiastically. "Delicious, Fina. I could drink your milk all night." I beamed at his praise, ready and willing to let him feed from me for as long as he wanted. After all, he'd given me so much of his wonderful cum.

"Hey, Daddy, do you think you could cum on me this time instead of in me?" He tilted his head to the side, but still smiled. "Any reason?" I giggled and blushed, licking his cock a few more times before answering. "I really, really love you, Daddy. I want to be your mate, just like Mommy." Daddy's cock jumped and spilled quite a lot more pre all over me. "I mean, now we're both Mommy's mate since I got her pregnant. Mia's my mate now too, and Mommy's gonna help me mate Jenny next. I want my wonderful Daddy to be part of it, and I want everyone to know at least some of the babies in our tummies are yours."

Daddy seemed really surprised, but the look went away as his eyes rolled back and he howled again. Thick streams of cum shot from his cock, splashing on the ceiling and raining down over me. Not wanting to waste it, I rolled back and aimed his cock at my face. His next stream hit me right between the eyes, soaking much of my face. I stuffed the tip into my muzzle next, clearing my eyes while he shot a thick wad of sperm all over my tongue and down my throat. The next squirt was too much for me to swallow, and it backed up into my nose.

When I pulled free, gasping for breath and with cum streaming out my nose and mouth, Daddy stood up and took charge. Stroking his cock rapidly, using my milk and saliva and his pre to lubricate it, he aimed next at my tits. He soaked one, then the other, and made sure to leave them coated in a thick layer of sperm. I rubbed the cum into them as best I could, my milk squirting out all over the place.

His next target was my tummy. It was so big now that Mommy probably could have crawled inside, but it felt great. My babies were writhing around in happiness, causing my fur to bulge all over the place while Daddy started to soak it. Being so large, it took a while, but Daddy didn't stop cumming until every inch of my belly fur was sticky with his sperm. He even made sure to dribble the last of it on to my tail, causing it to make a wet splat every time it twitched and hit the floor.

I took my time to savor the feeling of being totally soaked in warm cum. Sure, Mommy and Mia had rubbed in a bunch of my cum earlier, but this was fresh from the source. When my lover had done it, I was too busy enjoying how he was getting me pregnant to appreciate it. I loved how it soaked into my fur. I loved how it oozed across my body. I loved how it smelled. I loved how it tasted. I loved the heat. I loved that it had come from my Daddy. I loved that I had made him happy enough to give me so much.

Daddy sat back down on the bed, my belly completely in the way. I could hear him panting for a while, the both of us riding the high of orgasm for many minutes in relative silence. When he caught his breath, he got up and walked over by my head, sitting down next to me with his still hard cock in full view. "Fina...what did you mean when you said you got Mommy and Mia pregnant?" I nearly opened my mouth to remind him, but then remembered that Daddy hadn't been here. Mommy, Mia, and I had gotten so used to my cock that it wasn't weird to us anymore, but Daddy didn't know I had grown one yet.

"I was surprised myself, honey. It seems our daughter got a lot more than a womb full of babies last night." We both looked towards the door, seeing Mommy standing there with Mia and Jenny. Mia looked very happy with herself, her tits and belly much bigger than when they'd left, but Jenny appeared only half awake. She stood there, naked as we were, and swayed back and forth while licking her lips. Her chin, neck, and chest were damp, though I couldn't tell for sure what with thanks to all the smells everywhere. Mommy's tits swayed heavily, dribbling milk constantly, and I was pretty sure what had been going on.

Mommy grabbed Daddy and lifted him up, planting a big kiss on his lips. "Now it's time for her to get Jenny pregnant. She'll need some help since she's so big now. Can I count on you?" Daddy nodded, still confused but no longer concerned. Mommy grabbed his cock, slowly stroking it as she nuzzled under his chin. "Now don't worry about Fina. She'll get however big she needs to. Cum in her as much as you want. She wants it bad." I nodded hurriedly in agreement, then looked at Mommy funny. She giggled and turned to Daddy. "Imagine that, Ian. Our little Fina has knocked up her own mother and little sister, is soaked head to toe in her father's cum, is massively pregnant with a very bizarre litter, and she has no idea how to work a proper threesome!"

I blushed, apologizing. Mommy grabbed my paws, her and Daddy helping me stand. "Oh, don't worry, sweetie. You're still learning. But lucky for you you've got me and Daddy to help you, hmm?" I nodded, trying to figure out what Mommy had in mind while I took in Jenny's naked body. She really looked out of it, but not in a bad way. It was almost like she was having a really good daydream. I could smell her scent getting much stronger, and watched her paws wander around her privates. She still had some growing to do, but I had been very jealous of her more mature figure. Now that I had bigger tits and wider hips, I loved the idea of helping her catch up to me.

Walking over to her, I rubbed her arm with one paw and her face with the other. Her eyes focused on me, immediately licking her lips and getting a noseful of my scent. "Fina... I don't... What's happening...? I'm so... I need something... Mmmmm...something in me..." I couldn't help but smile. My "worldly" big sister was just as clueless as I had been! It was adorable! "Don't worry, Jen. Everything's fine. Better than fine, actually. I promise you'll like what's about to happen."

All she seemed able to to was nod, squirming while she waited for what her body was telling her she wanted. When Mommy walked behind to Jenny, setting her paws on her eldest child's shoulders, I knew she'd be getting it soon. I waited for my cock to come out like it always did, but something felt weird. Instead of it coming out of my tunnel, the little nub above my privates that felt so good whenever Mommy or Mia had touched it began to stretch and expand. I yipped and stumbled, Daddy catching me while it kept growing. Before long I could feel it bumping against my underbelly, the sensations telling me my cock had grown in a different way than normal.

Mommy licked her muzzle and mrrred. "Well that's different. But now there won't be any space issues. Down on your paws and knees, Jenny." Jenny obeyed, Mommy directing her so that her back was to me. My big sister lifted her tail instinctively, showing her wet privates and that beautiful rump of hers. My drool hit my tits before I remembered to swallow at the sight. When I tried to position myself, I understood what Mommy meant by my needing help. I was so huge now that I just couldn't move everything out of the way and aim.

I felt Mia's hand on my cock, urging me forward while she lifted up my belly. Mommy's fingers spread Jenny wide, the smell of her heat driving me wild. It had an effect on Daddy, too, as he moved up against me and began humping my back. Surrounded by my family, each of them playing this incredible game with me, I couldn't help but feel safe. I didn't know how, but I was going to make sure we were together like this forever.

I couldn't see Jenny hardly at all behind my belly by the time I felt my cock touch her privates. She gasped and mrrred, lifting her rump and pushing lightly back into me just as Mia had me move forward again, the tip of my cock sliding in with ease. I hissed in pleasure, my new cock extremely sensitive to every squeeze her tunnel made, and felt Mommy's paw on my rump. "Be sure to stuff her pussy full, Fina. Daddy will help you fuck her, but I expect you to seed her good."

I was about to ask what she meant by pussy (I was pretty sure there weren't any cats involved...) when Daddy stuck two fingers in me. I lurched forward, burying myself in my big sister all the way to her hymen. I couldn't see her at all anymore, but it felt like she'd set her head on the floor to raise her rump while leaving room for my belly. My babies were getting active again, sending all kinds of sensations through my hide as they moved about. They were so big already, I hoped they'd be ready to come out soon!

Panting and holding myself back so I could make Jenny's first time as good as Mia's, I turned around to look at Daddy and asked him what a pussy was. He just grinned at me, tilting his cock so that it pressed against my privates. "Well, sweetheart, how about I use it in a sentence and see if you can figure it out." He suddenly thrust forward, forcing himself almost to my cervix in one shot and causing yet another orgasm to run through my female parts. "Since you want to be my mate so much, I'm going to fuck this pussy of yours till I can't thrust anymore." Of course I got it right away. Daddy knew just how to teach me.

Here I was between my big sister and my Daddy, ready to make new life both in her and in myself. It was like everything else just fell away. I wasn't even sure if Mommy or Mia were still helping or were entertaining themselves somewhere else. All I could feel was Jenny's...pussy...clenching me and Daddy's cock sliding back out in preparation for his next thrust. Jenny's tail swished back and forth as best it could, nearly pinned between my belly and her back, the fur tickling me in just the right way.

Daddy's strong arms grabbed my hips tightly, holding me in place when he thrust. I felt my cock bump against Jenny's hymen lightly, drawing a groaning yip from her, but I did not break through. Then he did it again, and again, and again. Each time I would bump Jenny's hymen just hard enough to give her pleasure even as Daddy's thrusts were driving me wild. Daddy was doing the same to my cervix, bumping into it but never pushing through. Oh, how I wanted him to just take me all the way!

Several times I thought I heard Jenny almost say something, only to have it lost in her yips. After each thrust it got more coherent, until finally she nearly screamed, "More! Harder! Please!" Daddy moved his grip on my hips, sliding his big paws around towards my tail, and pushed me forward at the same time he thrust extra hard. My cock burst through my big sister's virginity like it wasn't there, stopped only by her still tight cervix, at the same moment Daddy finally shoved the tip of his cock through the entrance to my womb.

I heard Jenny scream in ecstasy, her pussy clamping down on me hard. Her hips bucked against me, forcing the tip of my cock against her cervical ring many times. My own pussy sucked on Daddy's cock as best it could, the slap of his bowling ball sized balls against my legs giving me a very happy feeling. My babies went insane at the intruder, but I could almost feel it was happiness and not fear they were expressing. It was a long moment before I could hear Jenny's voice, demanding and desperate in equal measure. "Dammit, Fina! Don't stop! Fuck me hard! Put it all in me, I don't care how!"

I chuckled at an idea that popped into my head, knowing she wasn't sure exactly how to get what she clearly desired. Again looking at Daddy, I nodded towards Jenny. "Jen says she needs it, but wasn't very nice. I say we go slower." I felt Jenny shove back into me harder, nearly lodging the tip of my cock in her cervix on her own. "Nooooooo! I can't take it! Don't tease me anymore!" Daddy licked my muzzle, his eyes laughing. "It's up to you, Fina. I'll go as fast or as slow as you want." Jenny almost sobbed in need when she heard that, swirling her hips around to entice me.

The tip of my cock rubbed all around her cervix, my pre soaking it and slowly loosening it up. "I don't know... Maybe we should slow down a bit. I haven't even asked if she wants to be pregnant with my babies yet." So desperate was she that Jenny's next thrust finally pierced her cervix, stuffing the tip several inches into her womb. "I don't want to be pregnant. I NEED to be pregnant! I'll do anything so long as you breed me!"

I managed to reach around under my belly to grab her hips, holding tight as I pulled her in close. "I'll keep you to that, Jen." Daddy began thrusting into me like a mad fox, my and Jenny's grunts and moans filling the room. Despite my grip, Daddy's forceful thrusts caused Jenny to bounce back and forth on my crotch, mimicking me fucking her under my own power. I could feel that Jenny had entered a continual orgasm, her pussy not once letting up the pressure or the sucking, and I knew it wouldn't be long.

"Daddy! Daddy, I'm going to cum! Cum with me!" Daddy sped up his thrusts even faster, nearly making me lose control as he neared his own release. The moment I felt him thrust in completely, hilting himself in me and hilting me in Jenny, I let it all go. "I'm getting you pregnant, Jen!" My knots grew inside her, locking the tip in her womb and the base in her pussy, at the same time Daddy's grew in me to lock me in place, his cum spurting up into my womb moments before I began to put my babies in Jenny's tummy.

Thick, heavy cum surged through my cock, the now familiar path from knot to knot and then out the tip better than ever. The first squirt bathed the eggs Jenny'd already started making, the second and third forcing her to ovulate rapidly. My belly again got in the way of seeing her grow, so I closed my eyes and tried to imagine it. Jenny's sexy tummy getting a little pudgy, then rounding more and more each time I shot into her. Her legs forced apart as she kept growing, my sperm wriggling around in her with the sole purpose of impregnating her with my babies.

Despite how much I enjoyed the vision, something was bothering me. I couldn't feel the warmth of Daddy's cum inside of me, just the writhing of my babies. I could feel his cock bulging with each potent load, his balls contracting to force more sperm up into me, but nothing where it counted. Through my own orgasm, it took me a long time to taste the cum in my mouth and notice the feel of it sliding into my stomach. It really confused me for a little bit until I heard something rather strange inside my head.

Thank you Momma. Thank you Grandpa.

Even while I felt Jenny's quickly bloating tummy pushing her into me, I understood. My babies were feeding off of Daddy's cum! Every spurt into me would help them grow faster and stronger. But at the same time, I had wanted Daddy to get me pregnant. I couldn't decide if I was happy or disappointed.

Don't worry, Momma. Once we're full, you can go ahead and have Grandpa breed you. We'll be busy, but we don't mind having more in here!

My babies! My babies were talking to me! There were so many of them! I mean, I knew I was pregnant with hundreds, but...I guess I just didn't realize how BIG that number really was until now.

My joy was interrupted when my sperm began to fertilize Jenny's eggs, the image sending me into convulsions that forced several more pints of cum into my now big and round sister and caused Daddy to cum inside me again. My babies withed in joy, consuming it as fast as it came out, my belly growing in girth yet again as I thanked Daddy on their behalf.

Daddy and I were leaned back further than when we'd started thanks to the swelling belly I'd given Jenny, my own tummy easily big enough to fit Daddy inside it now. Unlike previous times, I didn't feel at all tired. Each time before I'd need to rest, or even sleep, but here I was ready and willing to go right away. I gasped at Jenny shaking her hips and grinding against me, panting, "More... I'm not... big enough... yet..."

Considering I still wasn't pregnant by Daddy, it was a good thing Jenny wanted it so bad...