GeneX Xtra
Sonic Female 8 - Epilogue
Situation - M/F, vaginal, oral, impregnation

Note: Sonic the Hedgehog and related characters are (c) SEGA and 
Sonic Team. You knew that, right?
GeneX and related fanchars are (c) 2BIT (TheGreatGator), the author.


Last time in this story...
After collecting all the Chaos Emeralds and defeating a revived Mephiles the Dark, Sonic decided to remain a female and pursue a relationship with Tails.
However, the next morning, she woke up pregnant, and was faced with the horrific fear that the father could be Shadow, Mephiles...even Eggman due to her time captured! How could she face Tails with this information? How could Tails forgive her for sleeping around?
Now, it's time for a new chapter!


Sonic was pregnant. In retrospect, she should have expected this to happen. She'd been spending so long trying to return to her old male self, though, that she hadn't put much thought into it. Ultimately, she realized that if she wanted to be with Tails, she had to tell him. She sat down next to the fox on his couch and looked at him nervously. "T-tails... I'm..." she began. Tails hugged her gently. "You're pregnant! Oh, my gosh..." he said, wagging his tails. Sonic gently nudged him back and looked him in the eye. "I-it's not good, Tails..." she murmured. The fox's ears folded, and he nodded. "Right... Mephiles fucked you... And...ugh, Eggman. But, that's not your fault..." he told her, placing a hand on her cheek. Sonic took that hand in hers and had a guilty expression. "T-tails... I... I can't help myself... I've been sleeping with everyone. I-I actually let Shadow fuck me while I was still super... I... I know I shouldn't, but for some reason I just... WANT to... I dunno why, I wasn't like this as a dude!" she rambled, tears starting to form in her eyes as she thought about what Tails must be thinking of her. She cheated on him. And she didn't really feel guilty until she was pregnant. "I LIKED it, Tails... I didn't even think about you..." she said shakily. The fox held his chin, thinking. "You're right, you weren't like this as a dude..." he mumbled. Sonic held his shoulders. "P-punish me, Tails... I deserve it... Y-you can even cheat on me. I... I bet all the girls would love you!" she stammered. Tails blushed and took Sonic's hands in his. "Calm down, Sonic. I'm not gonna cheat on you. I think we should have you checked out by a proper doctor. I checked you out but I'm a tech nerd. I might have missed something that's making you sex-crazy." he said, "...Also, you're pregnant." he added with a chuckle. Sonic blushed and hugged her boyfriend. "I don't deserve you..." she sniffled. Tails nuzzled her and stroked her quills. "I don't think you mean to hurt me. And I'll do whatever it takes to help you through this. That's what being a boyfriend's all about!" he said. "Chaos, I'm hot for you right now..." Sonic huffed. "Easy there, let's get you to a doctor first..." Tails chuckled.


The best doctor to choose for such an odd problem was of course the creator of Copter and Kosmo, Bucky the rat. He knew more about biology than anyone Tails knew, so he brought Sonic to the rat's lab. He wanted to stay by Sonic's side through the examination, but Bucky insisted on doctor-patient confidentiality...despite the fact that he was actually a scientist and not a real doctor. However, the absence of distractions allowed his examination to go as quickly as possible. "Hmm, indeed... According to my tests, whatever transformation you've been through has resulted in a hormonal imbalance, which in turn has caught you in a state of perpetual heat. It's become harder to ignore over time, I imagine." the rat explained. Sonic was sitting on the edge of a lab bench, making bedroom eyes at Bucky. "Do tell... Wait, gah! Ew! I'm lusting after you now! C-can you make me stop??" she gagged, "Ah... no offense..." she said awkwardly. Bucky had a serious look. "I can fix the imbalance, easily. I think you might want to hear what else I have to say, though. Firstly, if I fix the imbalance there will be no going back. You will remain a full female. Any attempt to change back will be dangerous at that point." he said. Sonic shrugged. "No worries... I already decided to stay this way. I want...to be Tails' girlfriend..." she murmured, glancing at the door with a dreamy expression. Bucky snapped his fingers to catch her attention. "Stop thinking of humping your best friend for two minutes, I have one more thing. I did a DNA test on your fertilized egg..." he said. Sonic glared at him. "Without my permission?? Was that even safe??" she snapped. "Only if I do it, this early in the pregnancy. Sonic... the baby... it's Shadow's." Bucky told her. Sonic's heart sank, and tears came to her eyes. "S-shadow's? But... that'll crush Tails..." she whimpered. Bucky crossed his arms. "Well, hedgehog DNA was more likely to bond with hedgehog DNA... But if you truly love that fox, I can fix this for you." he said. The rat placed a syringe in Sonic's hand. "Inject Mr. Prower with this. It will alter his semen, giving it the strength to rewrite the DNA of your baby. Essentially, you will have the chance to consummate your relationship and have him impregnate you instead. Basically, you're changing the father, but it'll only work at the early stages of pregnancy. If you wait too long, this WILL be Shadow's baby. Now, some would suggest you discuss this with Tails and Shadow... I say it's your body, but the father you choose does have a right to know..." Sonic stared at the syringe as Bucky explained all this. She could fix her mistake... it felt a bit like playing god, but this is just a Sonic smut fanfiction story so let's not overthink it THAT much, okay? Before she could leave, though, Bucky handed her a pill bottle. "Take these twice a day for a week and see me afterward. Your hormonal imbalance should be fixed but it's good to be sure." he said.


Just a typical doctor's visit, right? At least Sonic didn't have to track down the Chaos Emeralds or battle with Dr. Eggman again. She just had to keep her head on straight for a week or so and decide whether or not to inject Tails' junk so he could rewrite her baby's DNA... Easy peasy, right? It seemed like an easy decision, and it pretty much was, she just couldn't decide whether to tell Tails that her baby was Shadow's or to try and inject the fox without him knowing somehow. It would be easy if she had all her old speed, but it was taking a degree of training to get that back in her new body, so injecting Tails without his knowledge might not be possible. The fox could tell something was weighing on Sonic as he brought her back to his workshop, too. "Relax, Sonic. Just keep up with these pills, I'm sure you'll be a normal, level-headed girl in no time." he said, "And I won't judge you if you have a moment of weakness during the week...but we'll try to keep you close to me so I'm the one who satisfies your urges..." he said, blushing as he thought about what that would entail. Sonic plopped down on the couch as they stepped into Tails' home. She held the syringe out of his sight. "What if... What if level-headed girl me isn't into you like this version of me is?" she asked nervously. Tails patted her head. "The pills are giving you control of yourself, not changing your personality, silly!" he smiled. She was stalling and Sonic knew it. It wasn't fair to keep this from him. She had to tell Tails. She gulped and took his hand, guiding him to sit beside her. "Tails... Bucky tested my baby... Y-you... you're..." she couldn't say it. Tails could guess, though. "I'm not the father..." he said a bit sadly, squeezing Sonic's hand. Her heart broke to hear the sadness in his voice. "It's my fault... I'm sorry..." she sniffled. "But it's not. You didn't know you were in a crazed heat." Tails said. Sonic held up the syringe. "I can fix it, though... If I give you this shot...you can re-impregnate me... Your cum can overwrite the DNA of my baby..." she explained. Tails looked at her with a conflicted expression. Because yeah, the moral implications of this are a bit spotty at best. "Do you want me to?" he asked, "Do you... really want us to get pregnant already? You could always just give the baby to the father..." he pointed out. Sonic looked Tails in the eyes. "...I want my first child...to be yours..." she said, blushing deeply.

Tails had an incredibly bashful expression, but he gladly kissed Sonic on the lips. "Are you truly sure, Sonic?" he asked, nuzzling her, "I'll take the shot and do it right now, if you want me to..." he whispered. Sonic hugged the sweet fox, pushing his fluffy chest into the couch as she slowly lowered down below him. "Oh, not so fast... I wanna make you feel really good first..." she smirked, her hands resting on his knees and spreading his legs apart. Tails placed a hand on her forehead, petting her fur gently. "S-sonic... Are you sure you aren't acting this way because of your hormones?" he questioned. Sonic giggled. "You said yourself it's not changing my personality, so does it matter?" she asked playfully, bending over to kiss his balls as his foxhood was slowly getting stiff in anticipation for what Sonic would do. She had put on some clothes for the trip to the doctor, but Sonic was quick to toss aside her shirt and set her lovely breasts free, winking at Tails as she stretched and posed for him. "You deserve this, bro... Everything you've done for me... Time I treated you right in return..." she sighed, taking her breasts in her hands and wrapping them around the fox's growing length! Tails blushed and cooed softly as he felt Sonic's soft melons slide up and down his cock, coaxing him to his full length. "Ahhh, mm... You still wanna call me your bro, Sonic?" he asked with a coy smirk. Sonic smirked back, glancing up at him while flicking her tongue out to tease his tip. "My sexy bro... With his BIG chili dog..." she murred, squeezing her breasts against his length as her tongue trailed around his tip. Tails gasped softly and scratched behind Sonic's ear, grinning at her. "If you wanna taste my chili dog, why not let me taste your yummy juices..." he suggested, licking his lips.

So, Sonic laid on the floor, allowing Tails to slide off her pants and reveal her wet pussy. "Mmm, don't you look tasty..." he grinned, turning himself around as he crawled over Sonic, his hard dick pointing down at her face while he rubbed a couple fingers along her pussy lips teasingly. Sonic let out a soft purr, and reached around Tails' waist, fondling his ass while nuzzling her cheeks against his cock. "Don't take this too slow, Tailsy!" she said teasingly. She then gasped, feeling his fingers slide open her pussy lips, the fox's breath tickling her crotch. "I wouldn't dream of it, Sonic..." he purred. In that moment, Sonic opened her mouth and engulfed Tails' shaft while she felt his tongue dive into her entrance! Each of them moaned into the other's sensitive spot, slurping and sucking sounds soon heard as they each began to taste one another eagerly! Sonic shut her eyes, swirling her tongue around that long, thick pole as it slid in and out of her maw. She slipped a hand down to cup his balls, a blush coming to her face as she thought of the contents. Tails would make her baby his with that glorious fox seed. The fox rolled up his eyes as Sonic played with his balls, and expertly twisted his tongue inside her tunnel to give her walls a good massage. His twin tails wagged excitedly as he tasted the juices of her arousal. He pulled up his head for air, diving in his fingers to keep up the assault on her pussy. "Aaahh… Ohh, Sonic... I-if it were reversed, do you think we'd still be doing this?" he cooed curiously. Sonic slipped his cock free of her mouth, licking and nuzzling it. "Aw, yeah... Heck, I'd have knocked up girl you faster!" she teased, kissing his tip. Tails blushed deeply. He wasn't sure how he felt about that, but this reality felt amazing! "S-sonic, I... I'll cum if we don't stop!" he gasped. Sonic then abruptly stopped touching his dick. "Ohhh... As tasty as your fox milk is, Tails... I want all of it put to work making our baby..." she smirked. Tails shivered and kissed her pussy lips. "As you wish, Sonic!" he purred.

Tails climbed off of Sonic, and before he knew it, Sonic had stood up and lifted him into her arms! "Whoa! H-hey, isn't this the boy's job?" Tails chuckled with a blush. "Give me this one bit of masculinity, hehe..." Sonic replied with a smirk, cuddling the fluffy fox into her arms. She carried him off to his room, Tails hugging her as he enjoyed the ride. "Hehe... I'm yours, Sonic..." he cooed. Sonic nuzzled him before laying the fox onto the bed. "And I'm yours... Won't Amy be jealous..." she winked. Funnily enough, Amy still wanted Sonic despite hearing that she was staying female. A restraining order might be needed with that one. But for now, Sonic's attention was on the adorable fox on the bed. She kissed him before heading back to grab the syringe. "Once you're shot with this, your cum will be even more potent than before..." she winked. Tails blushed. "How potent could it be now if I wasn't the one who-" Sonic placed a finger on his lips before he could finish. "That means nothing, and don't think it does! But we gotta jam a needle in your junk, so... You really gotta be absolutely sure." she told him. Tails looked at the syringe nervously. Shots weren't fun to begin with, and he had to get one in his dick? Despite that, though, he wanted that lovely female hedgehog too much to be afraid. So he had to man up. He took the syringe from Sonic. "I love you, Sonic..." he said, inhaling sharply, "...enough to do this!" Sonic's eyes widened as she watched Tails. Her former sidekick and now-lover gave himself the shot right there in front of her, gritting his teeth and whimpering softly as the special formula filled his privates and powered up his cum! Once the syringe was removed and dropped on the floor beside the bed, Sonic pressed her lips to his and kissed him deeply. "Ahh, T-tails... Fuck me, bro... Give me your baby..." she said lustfully.

Sonic got down on all fours, turning and shaking her sexy blue ass for her foxy mate playfully. She wanted him, and she wanted him now! Tails grinned at this, and took her bottom in his hands, rubbing it gently as he lined up his cock with her pussy. "Hehe, you ready Sonic? Hmmm?" he asked teasingly, his tip rubbing her entrance as his hands cupped and groped her ass. Sonic let out a lustful gasp and glanced back at him. "C'mon, stick that huge thing in me! Mate with me like the dog you are..." she purred. Tails slid his hands up her sides, feeling up her body as he leaned over her, giving a playful nibble to her ear. "Oh, but Sonic, you don't wanna be a female dog..." he teased. However, his foxhood did start to part her lower lips, sliding inside her slowly. Sonic blushed and gasped softly. "Y-you can say it, Tails... I'm your bitch..." she whispered. Such dirty talk, it made Tails feel like...getting good and dirty with her! He wrapped his arms around her chest and grabbed her breasts as his cock plunged deep inside her, hilting the hedgehog! "Like a dog it is, then!" he smirked, his hips pulling back before thrusting back into her, causing Sonic to gasp as she felt him start humping her nice and fast! As his cock slid in and out, drilling deep into her love tunnel, she felt his hands rub and pinch her nipples as well! Moaning, Sonic rolled up her eyes and gripped the bed sheets under her. "Oh!! Ohh, M-miiiiles!!" she huffed, blushing heavily. Tails nipped at her ear again and gave her boobs a squeeze as she called him by his real name. "So many years following behind your sexy ass... Now it's all mine, hehe..." he said with a sexy growl, lightly smacking her butt and rubbing it. Sonic huffed softly as she felt his dick hammering into her again and again. It felt amazing, but there was one thing missing. "T-tails, ahh... I-I wanna see your sweet face...!" she wanted to see his expression at the moment he'd impregnate her. Tails blushed and nodded. "I wanna see yours, too..." he cooed, quickly pulling out of her.

Tails had flipped Sonic over at a speed that was sure to please her, and she spread her legs for him as she laid back on the bed. Her emerald eyes met his sapphire gaze, both of them full of desire. The fox fell onto her, his lips connecting with hers as his dick swiftly sank back into her moist entrance! Their moans mingled together as they kissed, Sonic wrapping her arms around him as Tails began to thrust into her once again. Their tongues embraced as their kiss deepened, and Sonic's legs wrapped around her fox mate's hips while she happily moaned into the lip lock. Tails gasped as the kiss broke. Sonic was holding him awfully tightly. He hugged her back and sped up his thrusts, his moans becoming increasingly lustful as his cock plunged deeper inside her! "S-sonic...ahh... I-I'm getting close!! S-so close!" he panted, kissing her neck and purring. Sonic placed a hand on the back of his head, petting his fur as she moaned louder and louder. "D-don't you h-hold back, Tails! I w-want all y-your cum!" she gasped, nuzzling into his neck and kissing him as well. She suddenly released him from her grip and instead clawed at the bed sheets, her lustful pants becoming more intense as Tails' cock penetrated deeper, teasing her sweet spot as it sought out her womb! Tails placed his hands on her hips, angling to hit that spot as he looked her right in the eyes, a loving smile showing between blissed pants. "I'll give you my very best shot!" he huffed. Sonic nodded, smiling back, and the pairs voices melded into ecstatic moans as Tails pounded right into her sweet spot, making her walls clench around his dick as he thrusted in to hit that spot again! Both of them were ready to burst at this point, they couldn't hold on much longer!

Sonic's eyes widened as she felt Tails' cum pump into her. She could see his blissful expression as his essence flowed into her womb, and her heart fluttered. Her own climax struck her as she felt his seed still shooting, and her eyes clenched shut as her juices squirted his crotch and sheets. Inside her, Tails' seed found the fertilized egg, and began to overwhelm it, fertilizing it all over again and rewriting the paternal DNA. It didn't feel any different than usual, but Sonic placed a hand on her belly and blushed. She had a strong feeling, it told her that Bucky's drug had worked. She knew that Tails had gotten her pregnant this time. She watched him panting, his face flushed red as his balls emptied into her. She smirked at him. "Who's your daddy?" she said playfully, winking at him. Tails let out a bashful laugh and laid down in her arms. "Gosh, you're right... I'm gonna be a daddy... Y-you think I'm ready?" he asked. Sonic nuzzled him and kissed his cheek. "You sure felt like a real man just now. And I don't know anybody smarter than you!" she told him. Tails blushed, and realized his cock was still stuck inside Sonic. He started to pull out, but she stopped him. "I like being one with you..." she cooed sleepily. Giving her a smile, Tails wrapped his fluffy tails around her and hugged her tightly. "You're having my baby... Sonic... I wanna marry you..." he whispered. Sonic was drifting off to sleep, but she managed to say something in response. "Awesome...bro..." It wasn't clear if she was really all that awake as she said that, but Tails cuddled her and started to drift off himself. "I love you..." he purred.


Approximately a year later, Sonic relaxed on a beach chair, a cute bathing suit keeping her appropriate for public display. Bucky's drugs had worked to fix her hormones, and she no longer chased after every dick in her vicinity. This was a tiny bit disappointing for Knuckles and Shadow, until they found how easy Amy became without Sonic to chase around. Sonic lifted the sunglasses from her eyes and smirked as someone approached from the shore. It was Tails, wearing some red swimming trunks and looking quite sexy in the sun. Sonic took off her shades, putting them in her other hand, which was adorned with a gold ring...a wedding band. Tails had a matching one, and as he approached, he gave her a sweet kiss. "How's Skye?" Sonic asked with a grin. Tails glanced behind him. His twin tails were gently cradling a sweet baby hedgefox, which was adorably suckling on the tip of his tail. "I think he wants some time with mommy. Oooor maybe that's me, hehe!" Tails said cutely. Sonic carefully took her son from her husband's tails and held him in her arms. "Help me free the milk jugs, I think he's hungry..." Sonic chuckled, "Plus, I don't mind giving daddy a little feeding!" she winked. Sonic had found happiness as a female. Together with Tails, she had trained to regain her speed, something quite handy while raising a mischievous hedgefox. Not to mention, Eggman still didn't stand a chance against them. Truly, this was their happy ever after.

The End!