A Little Mouse Tail

Story by Desert Mutt on SoFurry

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#6 of Changing Christy


(The following is a work of fiction, based off of multiple events and role-plays. This story includes transformation, size-play and deep penetration.)

Christy woke up, trying to blink away the last of the sleep in her eyes. What time was it? Hell, what day was it? She grabbed at the alarm clock and blinked as she looked at it. No wonder she was hungry, she had slept until lunch. That tends to happen when you cannot sleep though.

A wave of frustration went through her as she got up, not even thinking about pulling on any clothes as she walked toward the kitchen completely naked. She looked at what was in the refrigerator, eyes lingering on the whipped cream. Her nipples hardened from a mix of the cold air and arousal. Her tongue licked at her lips as she imagined the cream being put on her body and lapped off by the canine tongue. Or, having him force her to lick it off the tip of his thick hard-

Christy shook herself, trying to clear the thought. He had bought it and been using it for other things like with his fruit. Besides he had done nothing sexual with her in...how long now?

She tried to think, rubbing her chin as she looked at what was in the fridge. What day was it again? What month was it? How long had she been staying here with him? It was not just yesterday that he had turned her into a horse, tied her up then started to...

No, she had to focus. What was wrong with her lately anyways? Okay. It had been a couple weeks since the last time he had sex with her. He was not ignoring her or such. He seemed to be watching her, like he was waiting for something.

She grabbed a bottle and some cheese then went to the table, trying to clear her mind. She had not been sleeping well the past few nights, tossing and turning as she felt horny and restless. It was as though she wanted him to do such things to her once more.

Christy shifted, remembering she was naked as the wood of the chair pulled at the skin of her butt. She ate some of her cheese and took a drink. Some part of her could not figure out what had changed for her so much. Used to be she hated being told what to do, refused to listen to authority and wanted to be in charge of her own life, not listening to anyone else.

Now, she wanted to be told what to do. She wanted to give up being in charge. A part of her wanted to disobey, but more out of curiosity and just to see what would happen. Maybe he would tie her up, spank her, or maybe nibble and scratch her a little during some rough play. That actually seemed to appeal to her. It was not like he would do anything to permanently hurt her. Would he?

Christy stopped a moment and leaned back, realizing that she had never even thought of the possibility before. She had been with him for months now, and not once had she even considered the possibility of him hurting her...well, not since she had been reverted back to her fully human form. Her thoughts were interrupted when she heard the front door open then slam shut. She got up, walking to meet him.

"You're home early," She said happily, smiling at him. She walked over and hugged the male canine, pressing her bare body against him, nipples rubbing against his shirt and one leg pressing against the jeans.

"No," He said with a smile, "I'm off today. I just got back from checking on some stuff for later this week." He wrapped an arm around her and grabbed her butt, giving the cheek a squeeze until his nails dimpled her soft flesh.

Christy jumped with a shiver, stifling the urge to moan out in pleasure. She felt herself get a little wet with excitement just from that one act of his and wanted him to do more. Her nipples hardened more, rubbing against the cotton of his shirt.

"Are you okay?" he asked curiously, raising an eyebrow, "you seem more...worked up then usual." He let her go, pulling away. The paw stroked over her rump as he moved past her and into the apartment further.

"Yes," She said instantly, "Wait...no. I'm not sure anymore," She turned to watch him some as she tried to express herself. "It's hard to say for me. It's just...I've been wanting you to do more to me. I want to see what else you have in mind. I actually want you to take control, despite how much I hated the idea of being told to do something or letting someone else be in charge when this all started."

"Exactly," he said as he got something to drink, "Perfect." He looked at her and grinned before taking a drink, watching her look of confusion. "You remember what I first made you? Well I may have claimed that it affected you mentally but the fact was that no it didn't. It was just to get you to believe that so you would go along with it some."

"So..." she said slowly, watching him, "Everything I did, chasing the stick and ball, eating the dog food and water..." she blushed "humping your leg..."

"Was ALL you," he said with a grin, "That's right. The entire purpose of what I've been doing was partly to get you to allow someone else to tell you what to do. Not like a mindless slave or anything, but to be able to so that you would be willing to listen to others and maybe consider what they say."

"Really?" She asked curiously, tilting her head to the side without thinking about it.

"MMno... probably not," He finally said. "That was just something that came to mind. I figured you would actually be submissive once you were relaxed. I just wanted someone to transform and play with for a while."

"So, you're done with me?" She asked softly, her voice hinting the disappointment. She actually felt bad about the idea of it all being over. She had grown to enjoy this and wanted more.

"No," He finally told her. "No Christy, I'm not done with you yet. I have at least two more things in mind for the not too distant future and I'm sure I'll come up with more as time goes on." He tossed the empty container and walked toward her, tail wagging behind him.

Christy shifted, watching him curiously with a tug of a smile pulling at her mouth. The smile faded some as she felt a twinge going through her body. It was starting at the small of her back, just above her butt. She knew what that meant, she was growing a tail.

The male canine continued to walk toward her. He seemed to be and getting taller then he usually was, even though they had hugged just a few minutes ago. She shifted anxiously, wondering what he was up to now.

As he approached he looked down at her, her body stopping as it shrunk down to a height of four feet. He smiled as her head only came up to the underside of his ribcage. Her nose twitched as it started turning pink. Her ears had started growing large, moving up some as she started turning into a mouse girl.

Christy felt a twinge of disappointment as her breasts deflated, causing her to have a flat chest. Her hips also shrank down, making her short body very basic in design. If she had been wearing jeans they would have slid right off of her, or she could pull them up to cover her nipples.

He watched with a smile as the long furless tail grew out until reaching the floor. He looked at the ears, wondering how sensitive they were. The fur that sprouted from her and her hair were white, though her kept her eye color the same as it normally was.

Christy ran her tongue over her teeth and wiggled her whiskers with a small giggle. She looked up at the male before her with a grin. Her dainty paws reached up, taking a hold of his jeans and starting to undo the fly.

The male canine watched her with a smirk as her little rodent hands worked to undo the fly of his jeans. He took a hold of his shirt, pulling it up to remove it off over his head and let it fall to the floor.

"Does the little mousey want to taste the doggy cock?" He asked with a slight teasing tone as she undid his jeans. Her eyes seemed to twinkle at the idea. She pulled the jeans down some, exposing his sheath and the tip of his shaft that was just starting to emerge.

She took a hold of the sheath and squeezed, stroking along the furred length. Her fingers could not even wrap all around it now, the covering to the member seemed massive at this time. She squeezed and stroked up along the length, trying to coax more of the canine's male hood from the protective covering. She leaned forward, her whiskers teasing the fur of his stomach, making the muscles twitch and try to pull away from the tickling sensation.

Christy's eyes widened and her inner walls clenched as she looked at the tip. It seemed massive. She leaned forward, pressing her lips against it. It was too big for her mouth in this form. She could not even get her jaw around the head. The rodent tongue slid out, running along the top and head instead.

The canine murred out in pleasure as the smooth mouse tongue slid across the sensitive flesh. He narrowed his eyes, watching her some in pleasure. His paws reached out, one taking a hold of her shoulder as the other reached up to one of the large mouse ears, stroking along the outer edge with his finger pad.

The stroke on the ear affected her more then she expected. She was forced to stop, moaning out loudly. The mere stroke of the soft finger pad along the edge of her ear had sent a small orgasm coursing through her body, the juice of which dripped from her lips and down onto her thighs. The rodent tail lashed slightly as her body tensed then relaxed once more.

He stopped and watched her quietly a moment. The canine nose twitched as the smell of female arousal grew stronger. The scent made his shaft twitch and swell, emerging further from the sheath.

"Wow," Christy said gently, "that was incredible." She looked up at her then moved back to the hardened flesh in front of her. One paw slid down to stroke the sheath still as the other gripped behind the head. She leaned forward once more, starting to lick at it once more.

The male shifted, bracing himself on his legs as best he could with nothing around to actually brace himself against. He let out a low growl of pleasure as he felt the small smooth tongue slid over and lapped up some of the pre cum that was starting to leak out of the tip. He finally started to pull away.

A little bit of disappointment went through her. She had just gotten him fully aroused and was hoping to get him to cum in her mouth...well on it since she could not actually take him in her mouth. The human turned little rodent girl looked up at him curiously, not yet moving from her position on the floor.

He reached down and picked her up, lifting her easily. She let out a small squeal of surprise as he picked up the four foot body, which meant she probably weighed less then a hundred pounds at this time. He lifted her over his shoulder, his eyes looking sideways at her rump, tempted to give it a swat or nibble.

Christy struggled playfully, not really trying to escape though. She looked down, catching sight of the tail and his bare butt. The struggling ceased as she watched it a moment, feeling herself get aroused more as she imagined it tense with his pumping into her body. Her legs pressed together, toes stroking along his chest fur as she was carried to the kitchen.

The male stopped and sat her on the counter, her feet dangling off the edge as she sat there and watched him a moment, legs pressed together. He grinned and licked his lips, tail wagging some. The paws gripped her thighs then stroked down to her knees, holding there to spread her legs apart.

The female watched him a moment as he moved down. She gasped out and wriggled as she felt first the wet nose trace down then the wide canine tongue stroke up and along her vaginal lips. Her eyes closed and tongue hung out, a silent moan of pleasure escaping her lips. The silence was shattered by a shocked gasp as she suddenly felt him thrust the tongue up into her body, pushing so deep he could actually lick at her cervix. Though it was easier to reach in her smaller form.

That was part of why he chose it, as she would soon find out. For now though, he was enjoying himself. His muzzle pressed against her crotch, rubbing his muzzle lips against her nether pair. The tongue stroked along the walls, moving up and down as the tip slid over the closed entrance. He moved his paws, stroking up her thighs then over the rump. The appendage slowly pulled back to slip out of her then moved up, stroking over her sensitive little clitoris before thrusting back into her warm wet depths.

Christy leaned back against her arms. Her body shivered as she moaned out in pleasure once more. Her toes curled and legs tensed as she felt the tongue tease and explore her depths, making her wet with excitement and building toward release.

Just as she was about to reach her peak once more, he pulled back slipping from her and licking his lips with a grin. He stood up and took a hold of her, letting her arms go then pushing the mouse girl onto her back. He moved up, his chest stroking over her as he moved up. The canine tongue flicked out to lick over her chin and lips as he moved to press his shaft against her feminine sex.

She looked up at him, his body practically eclipsing her own and covering her completely. Her legs raised, pressing against the sides. A sense of shock and excitement shot through her as she felt like it was incredibly massive against her little female body. Could he actually fit it inside her like this?

He took a hold of her ear, tongue pressing along the edge, then let out a long low growl, sending vibrations along it. He gripped at the edges of the counter as he stroked along her slit, lining the tip up with her opening. The canine hips pushed forward, spreading her open as he starts pushing is way up into her tight depths.

Christy shuddered with another mini orgasm and moaned out as she felt herself being penetrated. It was stretching her, almost painfully as though she were going to be ripped apart. It also felt incredibly pleasurable as he seemed to touch every part of her walls fully, gasping as the tipped pressed against her cervix.

The male held still, letting himself and her get used to the feeling. She was so tight it felt like her body was trying to squeeze some of his length off. Her body so small that she only managed to take about the first half of his length in her, the rest of it still sticking out between them.

The rodent paws reached up grabbing at the male's back and held as firmly as they could. The legs were spread around to his sides, pressing against him with the toes rubbing at his hips and thighs. The large ears shifted, pulling back slightly.

The canine body shifted, muscles moving as he started to pull back. The length tugged at her walls, seeming to try and turn her inside out as he slid out of her to the tip. The paws moved to her rump and squeezed, digging into the barely there flesh. He started pushing forward again, sinking his way back in, then working to sink more of his length deeper into her depths.

Christy gasped and moaned as she felt him thrusting back into her depths. Her body tensed, hips rocking to try and meet his thrust. The pressing of him sinking deeper sent intense pleasure and mild pain through her as he pressed against her. Could she take it all? And what about the knot?

He pushed forward, sinking deeper into her. He growled in pleasure at her tight warm wetness, his hips rocking to grind against her depths and pressing against the entrance to her womb before pulling back. He pulled back once more, sliding his way out from her to the tip. He thrusts forward faster, sinking back into her harder with their bodies slapping together as he tried to press deeper.

A part of the mouse girl shifted as something inside her seemed to feel different. She pulled her legs up then tried to spread them wider, pushing her hips back toward him and rocking. A small gasp escaped her as she suddenly felt the fur of his stomach rubbing against her clitoris, exciting her even further.

The canine chest rumbled in pleasure as the male pushed forward, the tip starting to spread open the entrance. He rocked once more then pulled back, sliding out just before thrusting forward once more. The hard length pushed forward, the tip spreading the ring and spearing into her womb. With the sudden access, he was able to sink in until the canine knot slapped against the vaginal lips.

Christy almost screamed out at the intrusion, sending her into an orgasm. The body gripped down and squeezed hard, trying to milk all the fluid into her that had yet to come. Her body tensed, rocking and shaking in pleasure as she climaxed, the canine knot pressing against her and starting to try to sink in. Her little nails dug into his back, causing small furrows in the flesh.

The male canine shifted, changing his rhythm some. His hips pulled back tugging until just the tip remained past the ring, sliding half way out of her. He when then give a short hard thrust, sinking back in to her depths and womb until his knot slapped against the opening, stroking along it before pulling back once more.

The girl turned mouse laid her head back, tongue hanging out as she panted. She shifted to get a little more comfortable, pushing herself back against him to meet the thrusting. Each movement rubbed along the walls and the ring he had gotten past to take her most private depths, each stroke rubbing along nearly sending her into an orgasm with each movement.

The male closed his eyes as his body grew tense. His lips pulled back, chest rumbling as he growled in pleasure with each movement. He let her body go, grabbing at the edges of the counter instead. He continued to rock, slamming against her on each in thrust, the knot pressing hard and starting to stretch her further as it got ready to sink in.

Christy was mindless in lustful pleasure and some minor pain of being stretched so much. It felt like she was so stuffed she was going to rip apart. When she felt him thrust forward and the knot sink in with a pop, she made a gurgling moan of a noise that was almost a scream. She was so stretched, it felt as though her hips were going to pop out of their sockets.

The canine grunted out as he tied the little mouse girl, feeling an almost painfully tight squeeze on his shaft like it was going to try to pull it off. He moved to brace himself better, pulling back to tug the knot and shaft against her inner walls then thrusting in to slap against her. The knot spread her canal further as the tip of his length hit the back of her womb.

She finally could not take it any more. She screamed out as she hit a massive orgasm. Her entire body spasm and rocked, thrashing underneath the male on top of her. The canal gripped and squeezed the shaft, trying to milk it for every drop it had yet to release. Something that had never before happened to her occurred as well. She squirted, the female fluids hitting his lower stomach and crotch, drenching them in fluids.

The new tightness was almost painful. He continued to rock and pump, rapidly building up. He finally pulled back and thrust forward one more time, sinking in as deep as he can. He tilted his head back and snarled, entire body tense and vibrating as he snarled. The knot inflated to lock him in place as his shaft pulsated, pumping his seed directly into her waiting and wanting womb.

The mouse girl went limp, almost blacking out. Her body hurt, as though the muscles were going to tear and not only were her thighs going to be dislocated but her hips were going to separate. But it was also incredibly pleasurable, every inch of her tingling and burning with intensely wonderful pleasure. She could not think, much less make herself move.

The two of them were stuck there together for over an hour, their bodies tied by the male knot. The small and tight female sex and the male knot kept them well sealed, the length blocking off so all of his fluid poured directly into her womb, mixing with some of her own.

When the two finally became able to separate, the male slowly slid free, the shaft pulling free of her tightness. The length glistened with juices as he slid free, starting to slip back into the sheath. Christy sat up slowly, all the fluids caught up in her depths and causing her belly to distend some as though she were several months pregnant. Just as he was reaching out to help her off the counter, there was a knocking at the door.

He merfed, jumping in surprise at the sound as it caught him off guard. He started for the door, grabbing his jeans and pulling them up as he walked. He snapped them up and looked through the peep hole, seeing what looked like a uniform. He braced himself and opened the door, being confirmed.

"What seems to be the problem officer?" He asked calmly, looking at the German Shepherd standing before him.

"We got calls of a women screaming," the officer replied, "We're checking to see if there is any domestic disturbance or such. You're not hiding anything are you sir?" The police officer shifted, trying to give him a hard look. The male canine felt himself heat up as he was blushing underneath his fur.

"Oh" he said nervously, "uh..we-well I can assure you officer, that there is no one being assaulted or murdered here. Everything is just fine." He shifted nervously, the muscles in his stomach tensing as he felt incredibly embarrassed that they were loud enough for the police to be called in.

While this was happening, the mouse Christy slid off the counter and peaked around the doorway to see what was going on. As she did, she slipped, falling across the entrance to the kitchen audibly and landing on her side, squeaking out in surprise and some pain.

The police officer tensed, ready to go for his gun when he heard the fall. The canine turned and walked toward Christy, moving to help her stand back up. The officer's nose twitched, catching the musk of sex in the apartment. Seeing the naked mouse girl made it pretty clear what had happened.

"Well," He said, "it seems that there is nothing going on here. I'm sorry to interrupt you folks at home."

"It's understandable," He said calmly as he could. He walked back and shut the door, pressing against it and looking at Christy. "I think that maybe I should pay to have this place sound proofed just so something like this does not happen ever again."