Prompt: You are a girl with unique abilities that you've never shown to another living person. When your boyfriend, Tim, accidentally discovers your secret, how will the nature of your relationship change?
Key: (Y/N) = Your Name, (E/C) = Eye Color, (H/C) = Hair Color
Ever since you found out about your boyfriend Tim's secret identity as Red Robin, you've been spending a lot of time around his family. You could go so far as to say you work for Bruce, mainly buying medical supplies and retrieving things for the boys. You just want to make sure Tim stays safe.
Right now, you're standing on a step stool decorating the manor for Halloween. No one else appears to have the time and the house was missing some spooky spirit. Alfred is baking something that smells like pumpkins, Bruce and Damian are on patrol, Dick is in the gym, Jason is on a mission with Roy Harper, and you assume Tim is somewhere quiet studying for the next exam.
"(Y/N)! Bruce needs your help if you've got a minute" Dick calls from the doorway.
"No problem! What's up?"
"Are you up for doing something totally disgusting?"
You arch an eyebrow. "Not really...what is it?" you ask with a slight cringe.
"Bruce needs you to bring the saliva samples from Killer Croc down to the cave. Do you think you can manage?"
"Fine..." you begrudgingly agree, heading into the freezer to retrieve them. Alfred was gracious enough to stack them on a tray so they'd be easier to carry. You grasp the handles and head to the secret door, carefully trying not to spill the containers.
Earlier that day in the Batcave...
"Hey Jay, look at this!" Tim hollers, lifting up a rubber werewolf mask. He slips it over his head and growls.
"I'm wetting myself," Jason replies sarcastically.
"Oh, come on! It's Halloween! Have a little spirit."
"I'll have a little "spirit" when you actually scare someone with that stupid thing."
"Fine! I'll scare the next person who walks through that door!" he exclaims, pointing to the hidden entrance leading to the manor.
"You're on! For your sake, it better not be Bruce, Alfred, or Demon. Be sure to catch it on video, though. I've got to meet Roy in ten and I better see someone crap themselves when I get back."
Present time...
The Batcave door slides open and you descend the stairs deeper into the darkness. Bats flutter near your face and you almost drop the tray onto the floor. Just as you round the corner to set the tray on the workbench, a figure with the face of a mad wolf jumps out in front of you! You scream and drop the tray holding the jars of spit all over you and the floor. Tim pulls off the werewolf mask and gawks at the colossal gluey mess of Killer Croc's spit.
"Oh gosh, (Y/N)! I'm so sorry!"
You stomp your foot and let out an animalistic, ferocious growl. Your eyes turn from (E/C) to an icy blue and your pupils expand. Your (H/C) hair lightens into a snowy white and your skin develops a thick fur coat of the same color. Your nose and mouth come together to form a furry snout with a round black nose and pointed teeth. Pointed ears rise from your skull and your trimmed nails narrow into sharp claws.
"UHHH!!! TIM!!! LOOK WHAT YOU JUST MADE ME DO!" you howl at him.
Tim releases a cry of pure terror and scrambles up the stairs into the house.
"Tim!! Wait!! I was going to tell you...about...this."
Your voice fades as you realize he's long gone. You sink down onto the floor and let the tears forming in your eyes fall down your fluffy cheeks. You were afraid this was going to happen. You can't always control your shape-shifting powers, especially when you're upset. You were going to tell Tim eventually, but you always figured he wouldn't be able to accept it. Now, the only boy you've ever loved just looked at you like you were some kind of freak.
When the cave door opens again several minutes later, you don't bother to see who came through. You slink down under the workbench in the hopes the person won't notice you.
"(Y/N)?" Dick's voice echoes throughout the cave. "You in here?"
"Leave me alone...please," you beg between sobs.
"Tim told me what happened. I just want to talk."
"Fine...I'm under the workbench."
Dick crouches down beneath the table and sits beside you. The shadows conceal your face, so he lifts your chin into the light. He examines you with a fascinated smile. "That is so cool," he remarks with excitement.
"Apparently not...Tim looked at me like I was some monster."
"When did you learn you could do this?"
"I was born this way. I come from an alternative universe in which mankind developed shapeshifting abilities. Each person is born with the power to change into one animal. Mine was a white wolf. I wound up here accidentally after the Flash opened the portals into the multiverse. I never had the courage to tell Tim about my powers because I was afraid he'd think I'm a monster. I guess I was right..."
Dick sighs as he contemplates a solution. "Stay right here, (Y/N). I'll go talk to him."
5 minutes later...
"What the hell, Tim?!" Dick shouts at his little brother.
"What was I supposed to do?! My girlfriend turned into a wolf right in front of me!"
"You literally could have done ANYTHING else! I found her crying and huddled up in a ball under a table! She thinks you hate her now!"
"I didn't mean to..." Tim mutters, burying his head in his hands.
Dick slaps Tim lightly upside the head. "What are you waiting for, numbnuts?! Tell her that you love her and make it up to her! It's the least she deserves after what you did today!"
Tim sighs and steps outside into the garden. He extracts a single pink rose from the bush and heads back down into the cave.
...
You finally manage to pull yourself together enough to sit in Bruce's high backed chair. You wonder where you and Tim are supposed to go from here.
You feel a soft tap on your shoulder and turn to see Tim holding a rose in his hand. You wipe your eyes and bring the flower to your nose, inhaling the sweet scent. Tim holds your pawlike hands and pulls you into a loving embrace.
"I'm really sorry, (Y/N). You look amazing. I was just caught off-guard."
You hold each other in silence for a long while before Tim laughs.
"It feels like I'm hugging a fleece blanket," he mumbles into the soft fur on your shoulder, making you grin.
"Hey...you know how this is really cool?"
"How?" you ask.
Tim retrieves the wolf mask and puts it on his head. "We're going to have the coolest couples costume this year!"