As the days turned to weeks Eric and Lisa found their new rhythm.
First Lisa spent some time changing her wardrobe completely, they both spent some time shopping and searching nearby malls for appropriate clothes, until they remembered the reality altering computer in Eric's room. Some careful manual reading and a few keystrokes and they were sorted. Pants that were wide, but short. Shoes long but narrow. Tops that were small but not child-like, and underwear that fit, were all created from nothing.
With the new wardrobe, and a reminder that the world saw her changes as normal, thanks to the chronivac, Lisa began to get more comfortable at school. Her prep every day was to ensure she had enough regenerating pencils (a chronivac invention), and nipple pasties, to see her through the day. Able to keep intrusive thoughts at bay, Lisa began to act normal again at school, able to pay attention in lessons, and interact with friends and fellow students.
Only with Eric, and in her dreams did those intrusive thoughts now manifest. Her dreams, more often than not, put her in a compromising position with fellow peers and played on masochistic exhibitionistic kinks of being called an animal or worse, or, and these were less common but far more intense, had her devolving further into rattiness, essentially becoming the stinking rat beast she just played at with wordplay.
The former, she was happy to play out in the bedroom with Eric, and had confided in her feelings of immediately with him. The latter, as the dreams refused to dissipate or lessen, she was far less willing to share; never mentioning them, or those feelings she would feel in the moments after waking, before the horror and self loathing at the thought rolled in.
Her fear was greatest too, that no matter how well and stable things were now, that somehow, somewhen it wouldn't be enough for her anymore. Little did she suspect that it would be a comment from Eric that eventually set the ball inexorably rolling for her.
So it was, that on the eve of her 17th birthday, they both found themselves naked, sweaty, and covered in sticky fluids, lying and panting on Eric's bed. Rolling over to regard and admire his girl, Eric lightly ran his fingers up and down her belly, at first trailing loops of her many nipples. Eventually though he dipped and began running through the matter fuzz of her pubic mound.
"You know Lisa, since you've changed, you've really let the hair down here grow out." She blushed at the comment, "Almost like you're trying to grow fur". Now fully scarlet her heart started to hammer in her chest, her thoughts flew into overdrive as she stammered incoherently, why had she let herself grow out like that? She had been prim and neat up until the change! The thought to shave was there but she'd always just decided... not to.
"Anyway, I think it suits how you look now, my little furry smelly rat." Eric nuzzled the mound and gave her battered lips a wet kiss when he found them. Lisa squealed happily at the sensation and at the name.
"Soooo, Eric purred, birthday tomorrow Lisa, anything in particular you want to do?" He asked from between her thighs. A thousand thoughts raced through her mind, including some of the most intrusive ones. "We can get kinky for the day of you like?" He added
She thought for a moment, then blurted out. "Smelly rat... you know I like that. How about... you use the chronivac to make that my name for the day".
Eric left out a hearty laugh, "Oookay Li... Smelly Rat, I'll see what I can do". He got up and walked to the Chronivac, booting it up, spent some time flicking through the manual and then confidently made the changes.
"You're a kinky animal, you know that Smelly Rat!?.. hah!!!" Eric pointed at his mouth. "It works!"
To which Lisa grinned like a rat that got the cheese, heart pounding in her chest at what she'd done.
---
No one was up when she snuck back home and into bed. Her heart racing, she only fell asleep thanks to the physical exhaustion of her time with Eric.
The night was full of vivid, half remembered dreams of rutting and fucking, like most mornings, Lisa woke up sweating, hot and horny, with a sense of shame at having dreamt something utterly depraved. She clacked her tongue on the back of her Buck teeth and grinned. She was seventeen today, and Eric had gotten her a very interesting present for the day.
Jumping from her bed she landed hard on the floor, then bounced with her long feet to the bathroom, ducking around her bleary-eyed sister trudging down the corridor.
Before her sister had a chance to react, Lisa was in the bathroom with the door locked. She heard the shout of. "Ah come on Smelly Rat!!! You're going to use up all the water again."
Lisa grinned maniacally, "It's my birthday!" She squeaked back. She heard her sister's strangled start of a response, before she just grumbled, "Fine... happy birthday by the way, Smelly Rat".
Her grin widened in the bathroom and she took her clothes off and turned to look at herself in the mirror. Automatically hunching, she slid into the stance she had adopted these past weeks. She was about to grab her razor to do her pits and then thought. "You know what, maybe not today..." leaving them with the stubble grown in the last couple of days.
---
"Aaahhh! There's my Smelly Rat! Look how big my little girl has gotten!" Lisa's father beamed from the bottom of the stairs as she descended for breakfast.
"Daaad... I'm the shortest one in the house" she protested, but with a grin still plastered on her face.
As if to answer he scooped her into a big hug and showered her squealing face with kisses before dropping her. Looking down he said, "I know that, you'll always be my little Smelly Rat, but that doesn't mean you're not grown up... now go grab breakfast, your mom made cheese toasties, your favourite!"
"Happy birthday Smelly Rat! Come grab some, just off the pan" her mother called.
The smile couldn't be wiped from Lisa's face as she ate. Excitement bubbling in her, she knew now how the chronivac worked. It rewrote reality, and history if necessary to get the desired outcome. Feeling brave she asked. "Hey... um... I was wondering, what made you choose 'Smelly Rat' as my name."
Her parents looked at each other and then her father spoke with a smile. "Well... originally you were going to be Lisa, can you imagine that! But then, when you were born. You had those big ears, those adorable Buck teeth, pokey little nose, long toes, and all those extra nipples. You were just so small and looked so cute. All you were missing was a tail. Like a little smelly rat... so that's what we went with!"
"Hehehe! Well, I like the name, thanks Dad." Lisa responded, having munched down her sandwich she stood. "Better get to school dad!"
"Bye Smelly Rat! Enjoy school" her parents called as she rushed out the door
----
School continued in the same vein. Friends and acquaintances all called her "Smelly Rat", the teachers the same. It was all she could do to not spend the day grinning maniacally. It also played so much into her masochistic and exhibitionistic tendencies that by lunch time she was aching for sexual contact. Once the bell rang she scampered to find Eric and drag him to a secluded bathroom to lock themselves into.
Once in there the panting girl began frantically stripping in front of her boyfriend.
Amused at her antics he started with, "So... birthday present going well you Smelly Rat?"
Lisa looked at him with heavy lidded eyes, "It's the best I've ever had." She turned and bared her ass at him. "Now come here and fuck me quick!" She begged.
What followed was a frantic wet fucking as Lisa churred and squeaked her way to multiple orgasms in rapid succession, while begging for Eric to keep calling her debased names.
By the time they returned for class, Lisa, finally sated, was grinning from ear to ear, especially in the knowledge that she had intentionally left her panties behind in the bathroom, and not re-applied and nipple pasties. The looks she got alone for the extra nipples poking through her to ensured that she thoroughly enjoyed the rest of the day.
----
"Crazy birthday eh Smelly Rat!" Eric smiled as he sat cross legged on his bed across from Lisa, a deck of cards between them as they played.
Lisa flexed and splayed her long toes and thought over her cards, "Yes... yes it was crazy". She smiled.
Eric laughed. "Back to normal tomorrow then, no more Smelly Rat, back to plain old Smelly Rat... wait. Lol... can't even say it. Hah!"
Lisa chuckled then paused looking up at him. "Ummm. I was thinking... can you. Well. I was wondering that maybe. We could just leave it."
Eric leaned back, a look of interest on his face. "Leave the name?"
"Yeah" Lisa responded, "Like, leave it permanent. I just had so much fun today. I kinda want to leave it like that. Think that's okay? As a present" she pouted.
Eric thought about it and shrugged, "Sure! You want it permanent?" Lisa blushed and nodded.
"Okay, well. I guess I'll leave it so." Eric answered. To which Lisa, now Smelly Rat squealed in delight and pounced across the mattress at her man, pinning him down. "Thanks Eric. You're the best. This Smelly Rat is going to fuck you raw tonight." She excitedly babbled