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Stone felt fangs sink into her throat before she was even fully awake. The agent’s eyes flew open and she instinctively jerked away causing her blood to splatter across the white sheets. One arm reached for her gun and the other rose to press against her wound before she even made eye contact with her attacker. Stone blinked as her eyes fell on a very stunned Dr. Iva Robotnik.
Stone lowered the gun and let her face fall from anger to confusion.
The doctor blinked, “at least I know you can defend yourself in an emergency."
“You’re a vampire,” Stone found her voice, “holy shit.”
“What, did you think we were myths?” huffed the doctor, flopping back onto the pillows, clearly annoyed by her snack being interrupted.
“No! I just can’t believe how lucky this is,” the agent said, sliding the gun back under her pillow and unbuttoning her pajama shirt to reveal a scared bite on her back that sat just underneath her bra strap, “because I was bitten in the sixth grade and have been a werewolf ever since.”
The vampire, who had been staring at the ceiling to avoid glancing over at the agent’s toned back, felt her jaw drop when her gaze landed on the deep bite mark.
She lifted a hand and removed her glove so she could press her cold fingers to the edge before she could even process that it had risen. Tracing the outline of each tooth indent, Robotnik studied the bite left on the werewolf.
Stone let out a small sigh at the touch, leaning into it and savoring the experience. It had been so long since someone had known about her secret, since she had gotten to show another person the bite that had changed her life.
The vampire started to speak but a rumble from Robotnik’s stomach interrupted her, causing Stone to giggle. The doctor looked away, her cheeks flushing with the little bit of blood she had managed to consume before Stone had woken. The agent huffed softly before lifting her hair and putting it into a ponytail with a band she kept on her wrist.
“I can cut it if you want this to become a regular occurrence, I have always wanted to shave the side,” she hummed softly, nudging the doctor with her shoulder, “enjoy.”
Robotnik looked at her in confusion before realizing Stone was willingly offering up her neck as a meal. The vampire blinked before licking at the small dribble of blood that had leaked out as they talked.
Stone bit the inside of her lip to keep from laughing because the sensation tickled. The vampire took her squirming as a sign to continue and latched onto the werewolf’s neck, eagerly drinking her fill. The werewolf hummed and kicked her feet where they hung off the edge of the bed.
The agent blinked a few times after Robotnik unlatched her teeth and gently helped Stone lay back on her pillow. The agent wore a woozy grin as she stared up at the vampire who was licking the last bit of stray blood off her lips.
Robotnik studied her face and immediately called for a badnik. Stone followed the drone with her eyes as she slumped sideways onto Robotnik’s shoulder. The drone dropped the small parcel it was carrying directly into the agent’s arms.
Stone opened it to find a collection of snacks and a juice box. The werewolf let out a small gasp at the sight and quickly grabbed the drink and punctured the lid with the straw. She began to sip on it happily while Robotnik snorted at her enjoyment and tired to take off her corset and jacket without shaking Stone too much.
“Planning to spend the night?” Stone joked as she finished her juice box and aimed for the trash can across the room.
Robotnik watched the empty juice box sail in a graceful arc and land in the bin, “mm,” she hummed, “too full to move and you haven’t let go of my arm since I started drinking.”
The agent looked down and realised her hand was indeed wrapped around the vampire's arm. She chuckled and released her grip but it was already too late, Robotnik had snuggled into her bed and was clearly spending the night. Stone smiled and leaned over to curl around her boss.
“Next full moon,” the vampire said with a yawn, “I want to pet you.”
“Sounds like a plan,” Stone responded with a smile as she felt a cool cheek press against her still uncovered shoulder.
“You planning to put your shirt back on?” Robotnik asked, shifting to pull the covers over herself, eyes definitely not locked on Stone’s chest.
“Nah,” the agent smiled watching the doctor’s pale cheeks flush with her willingly given blood, “I tend to overheat at night anyway. Maybe I just needed a certain genius to crawl into my bed and keep me cool.”
Robotnik squeaked and pulled the blankets over her head and refused to speak to Stone again that night. The agent chuckled softly and slid down next to Robotnik before whispering, “I never turned the light on, did I?”
The vampire giggled, “I totally forgot that humanity can’t see in the dark, that should’ve tipped me off you weren’t part of them.”
——
It had been years since she was assigned to Robotnik, and Stone was living her best life. She got to not only work for Dr. Robotnik, but date her too and she was able to transform on full moons without worry because the doctor not only kept her contained but also well fed. The binges every month had definitely led to an increase in shirt sizes for the agent, but it was nothing compared to the doctor’s plush abdomen.
Being fat was a sign of status for a vampire, but Robotnik had always been lean even though she craved being the best at everything. She had always put more time and energy towards her work than her next meal, and while it upset her that she wasn’t the greatest of vampires, she was the smartest among humans and vampires alike. But now Robotnik had an overeager werewolf of an agent who kept breaking into blood banks and offering up her neck anytime the vampire felt slightly peckish.
It was that puppy-like behavior and need to be helpful that had certainly had an effect on her waistline. The skin that had hugged her body so tightly the werewolf could trace her ribs had plumped up over the months of being doted on. The doctor had never caught sight of herself in mirrors since she was a vampire, so her weight had snuck up without her realizing.
Each time she found an issue like her leather pants refusing to make it past her thighs or her corsets shoving her chest up and out so much it hurt (something she had never had to deal with before), Stone always had a solution so she never connected that the issues were all stemming from one source.
It was a quiet morning when Robotnik felt warm hands press against her abdomen, her surprisingly doughy abdomen. The vampire looked down to see Stone kneading at what could only be described as a rather plump gut. Her pale skin was rounded in a way she had never seen before and it was much more than just her belly. Her thighs and the rest of her abdomen had also increased in width, making her feel a tad dumb for not noticing.
“I need to stop focusing on work so much, don’t I pet?” mumbled the doctor, embarrassed that this was the first time she realized that she had grown fat.
Stone raised an eyebrow as she shifted so her cheek was resting on the soft belly, “How come?” She asked, voice gentle as if she actually cared about the answer. The doctor knew she did, which never failed to make her smile.
Robotnik shook her head and looked away, trying to find anything else to grab her attention but Stone was clearly not going to let her. The agent’s lips began to press against cold thighs before she shifted and planted herself in Robotnik's lap, eyes sparkling as she looked at the vampire.
The doctor pouted, but the agent didn't let her keep that expression for long. The werewolf leaned forward, pressing her nose to the vampires before kissing her boss. Robotnik raised a gloved hand to rest on the agent’s cheek, all thoughts gone from her mind as she focused on Stone and only Stone.
When the agent broke the kiss, Robotnik let her head flop back onto the pillows she was resting against, the warmth of Stone’s touch lingering on her skin. The agent stared at the doctor, Robotnik’s face flushed with blood and, despite her lack of a need to breathe, her chest was heaving.
The agent loved it. She loved that the woman who walked like she was a god grew so flustered at a simple touch. She loved that Robotnik’s flushed cheeks were even visible. She loved that it was all her fault for keeping her supernatural girlfriend well fed.
The vampire looked up to ask why she was not getting more kisses and was promptly pinned onto the bed. The werewolf’s short hair flopped down, tickling one side of Robotnik’s face as Stone stared at the doctor.
More werewolf-like features were starting to appear as the thighs Stone was using to pin the chubby vampire down began to sprout fur and her feet turned to dessert plate sized paws. A thick furry tail sprouted from just above the agent’s more rounded butt and began to wag ferociously. Her face was last to disappear into the thick dark grey fur, and soon Robotnik was face to face with a larger than normal wolf.
The doctor sighed affectionately and wrapped her arms around the beast, pulling it down into a lazy hug. Stone happily began to wiggle, pink tongue running across the vampire’s cheek with a soft, pleased noise.
Most werewolves didn't have control over their other sides which ended up giving all of the species the stereotype that they become crazed beasts every full moon. Stone was usually quite good at controlling her wolf side, sometimes Robotnik joked she was a little too good because when she was overly excited or happy her tail and ears would pop out.
There was the rare occasion something sparked her attention and she ran off, but that was pretty much under control now that Robotnik supervised her transformations. She was given human limbs and bones to chew on as toys and snacks to keep her entertained, but it never lasted as long as keeping her hunger satiated. Sure it led to a roly poly werewolf and by extent, a fairly chubby agent but Robotnik was not one to complain. At least not about things that made her happy.
The vampire’s hands ran down the werewolf's back, calming the creature. Stone stilled in Robotnik’s arms, her massive front paws resting on either side of the doctor and her snout pressed in the crevice between Robotnik’s breasts.
Whenever she did this as a human, Stone got called a freak and was playfully swatted so she used her wolf time to nuzzle into the ample vampire at any opportunity. It was likely because she was too big of a beast for even the vampire’s strength to comfortably move. Robotnik didn’t care if she was squished because the doctor didn’t need to breathe in the first place.
Robotnik sighed through her nose, her lungs too squished to inhale again. She leaned back onto her pillows and summoned a badnik to tuck them in since neither the doctor nor the large wolf could reach the blankets in their current position.
——-
The doctor had trained her body to survive on the smallest amounts of blood as a child because the orphanage didn’t offer much in the way of food for vampires and she had just continued on like that. Sure it dulled some powers a bit, but it was worth it to not have to worry about where her next meal would come from in college. By the time Robotnik reached GUN, she knew she could take a little from most agents without them noticing, just enough to keep herself fed.
Now, however, the doctor had found herself straining the deep red corsets she loved to wear all throughout her years at GUN , her newly acquired belly and chest making the lace up process nearly impossible for her helper, Stone. It was lucky the doctor didn’t need to breathe, but she had begun to worry about the deep red indents that were left on her skin after a long day of work. Not because she cared, but because she knew Stone did.
The agent would fuss and beg to make her a larger size every evening but the doctor always shook her head and said it was fine.
Stone was not one to back down from a challenge, and Robotnik knew her girlfriend had been stealthy, replacing her coresets with handmade ones when she wasn’t looking. The feeling of being loved outweighed the knowledge that Stone was going behind her back ten times over.
The doctor still couldn’t believe she had someone so willing to love her for who she was, even when she was a ten feet tall vampiric shadow that was only meant to strike fear. Stone was so completely and wholeheartedly in love and it made Robotnik feel like the luckiest woman on the planet.
“Hey, pet, come here for a second won’t you?” The doctor called out only to turn around and find Stone already by her side.
“Yes, ma’am? How may I help?” The agent asked, sharp canines on display as she grinned.
Robotnik immediately forgot what she had wanted to request and lied, “just wanted to know if you were here.”
“Of course I am, I would never leave your side,” Stone reminded her girlfriend, leaning down to press a kiss to her pale cheek, “you’re stuck with me.”
The genius smiled as Stone headed back to her desk, eyes watching her wolf tail wagging fast enough for a helicopter to take off. Robotnik turned back to her monitors with a soft smile, “You better, pet, I don’t know what I’d do without you.”