For you, Roxy! Hope you enjoy!

A Fortuitous Misunderstanding
Requested By: Roxygirl (Guest)
Anime: Teenage Mutant Ninja Turtles 2012-15

Reader:
Roxy 'Rox' Knight
Female
15
Wavy waist-length light grey hair, Hazel eyes, Tan skin, 5'4"rey, pointed ears on crown of head, Grey and white-tipped tail, Silver necklace with small treble clef pendant, Light purple T-shirt, Jeans, Light grey running shoes, B-cup chest, Keeps her hair up in a ponytail when training or on patrol, otherwise leaves it down.
Wolf-hybrid
Retractable claws and double tantō
Kunoichi in training

Character:
Donatello Hamato
Male
16
Tea green skin, Tan plastron, Brown shell with some chips, Purple mask, 6 foot long bo staff, Amber-brown eyes, Elbow and knee pads
Mutant turtle
Ninjutsu and his brain

Plot: Roxy has been friends with the turtles for a long time.
Relationship: Best friends on the surface.
Word Count: 1,822

Don hunched over his laptop, typing away at the keys. He was supposed to be working on the formula for retro mutagen. Emphasis on 'supposed to be'. In reality, his mind was distracted with thoughts of, ironically, the person he was trying to make the retro mutagen for. Groaning in frustration, he abruptly pushed himself back from his desk, running his hands over his head.

"Gosh… what is wrong with me? I'm thinking about her even more than I think about April!" Upon realizing he said that out loud, the scientist quickly looked towards his door. No sound came from the quadruple padlocked entrance. Donatello sighed in relief.

"Wow. I really need to learn to keep a lid on it." He sighed again, letting his arms drop onto his legs as he slumped in his chair. "Alright Donatello. Think about this logically."

Now, I'm sure all of you are wondering who 'her' is. I'll tell you.

Roxy Knight, or Rox, as Don liked to call her. She had been friends with the turtles since meeting them when they had snuck out of the lair a couple years back. Since meeting April, they now routinely met up with Roxy. Turns out, she and April were in the same class, and were best friends. That all changed a few months ago however. What had started out as a routine patrol turned into the worst night of Roxy's life.

She had joined them, like normal. April was somewhere else, and hadn't dropped by the lair for a while. In any case, Roxy had taken her weapons, two tantōs, and raced them to the surface. They were jumping over rooftops when it happened.

They came across Bradford and Xever, now known as Rhazar and Fishface. Needless to say, a battle was fought. Three-quarters of the way through the fight, Foot bots knocked out Roxy. Rhazar and Fishface retreated, leaving the turtles in the dust. They pursued the Foot lackeys, ending up in Stockman's lab. Donatello gripped his head as he remembered Roxy strapped to the operation table.

"If I had been faster… if I had just been faster… she wouldn't have been changed into a monster."

Stockman had mutated Roxy. Her once chocolate brown hair was now a light grey. Her delicate elfin ears that Donatello adored (though he would never admit it out loud) had moved to the crown of her head, and were now pointed and the same color as her hair: grey. Her skin had remained tan, and Donatello was grateful for that. She had grown a bushy tail with a white tip, as well as claws on her hands and feet. What was interesting about those was that they were retractable. It was surprising, considering Stockman had used wolf DNA instead of feline.

Once they had gotten Roxy back to the lair, Donatello had done everything he could to try to reverse the effects. Nothing worked. Roxy was now a mutant. And, as such, she could never return to her previous life.

It was a hard blow to her. She had wanted to do so much: finish high school, go onto college, get a music major, go to a performing arts school, become a professional singer and actress… and now she couldn't. It was for that reason that Donnie had tried these few months to find a retro mutagen. Unfortunately, it also sowed a seed of jealousy in his heart.

During these few months, Roxy and Leo had become almost inseparable. She was always by his side, and he hers. Don knew Leo was helping her get used to her new abilities and appearance, but it didn't help his jealousy. Which led to a lot of confusion.

"Why am I jealous?" he muttered to himself. "I like April! Why would I be jealous that Roxy is hanging out with Leo all the time? It's not like… they're dating or something… right?" Somehow, saying that out loud made his heart feel like it died. "No… no way. Rox would never date Leo… would she?"

Voices outside his lab surprised him. "Speak of the devil…" Standing up, Don walked to the door, undoing the latches. Leo and Roxy were walking out of the dojo, sweaty and breathing hard. Don bit his lip at how happy Roxy looked with his brother. Clearing his throat, he called out to her.

"Hey Rox! Can I borrow you for a little while?" She looked at him, smiling as she jogged across the lair.

"Sure Donnie. What's up?"

"Come inside." She did. As soon as she was inside, he locked the door behind her.

"Why'd you do that?"

"I don't want Mikey barging in here. I've got a lot of sensitive chemicals around, and I don't think any of us want a repeat of the whole Ice Cream kitty incident." Roxy nodded.

"Gotcha." She sat down on the desk across from him. "So what's up?" Don shrugged, surprisingly nonchalant.

"I just wanted to talk." Roxy tilted her head, her ears flopping to the side.

"About what?"

"You and Leo." Her hazel eyes widened. "Are you two… together?" Roxy stared at him. Donatello stared right back. Out of all the answers he expected (and feared), he didn't get one.

She broke down laughing. He could only stare as she clutched her sides, tears streaming down her face. Her shoulders shook violently. Her tail wagged back and forth with her amusement.

"Uh… Rox?"

"What… what on earth gave you that idea!?" she asked breathlessly. Sighing, she wiped a tear from her eye. "No. No we're not dating." Don blinked in surprise.

"But… you two are always together." Rox shook her head, chuckling softly.

"Yeah, but we're not together together. He's like an overprotective big brother to me. That's all." Roxy shrugged. "It's not like we're romantically interested in each other." For some reason, Donatello felt relief crash over him like a wave.

"So… are you romantically interested in any of my brothers?" She nodded, to his surprise.

"Actually, yes." He gulped.

"Who?" Roxy shook her head, an expression of mischievousness on her face.

"That's a secret." Don sighed.

"C'mon Rox." She tapped her chin with a finger.

"Fine. But you have to close your eyes. And no peeking!" Don sighed again, but closed his eyes anyways. He heard her get off the desk, her feet silent on the ground. Two hands placed themselves on the arm rests of his chair.

"Rox?"

"No peeking." Don gulped as her breath ghosted over his face. He licked his lips in nervousness. Just then, something pressed itself to his lips. Deciding it couldn't hurt to open his eyes a little bit, his eyelids cracked open. They flew completely open when he registered the view.

Roxy's lips were pressed against his. Her hazel eyes were closed, her ears flat against her head as she kissed him. Don's own eyes fluttered closed as he returned the kiss. He felt Roxy's fingers' twitch on the armrests.

One of his hands came up to cup her face, his thumb stroking her cheek. She hummed, tilting her head into his hand. He tilted his head the other way, and immediately found it to be much better. This way, he could press closer to her.

Her hands came up to rest on his shoulders, her fingertips kneading his stiff muscles. He groaned, involuntarily opening his mouth against hers. Closing his lips again, he caught her bottom lip between his. Realizing what had happened, Don continued opening and closing his mouth. Roxy followed his lead, moaning in delight.

Suddenly, Don removed his hand from her face to grip her hip. His other hand came up to do the same. Once he had a solid grip, he pulled her down onto his lap. Roxy gasped. Before he knew it, Don had slipped his tongue into her mouth.

He had no idea what he was doing. All he did know was that when Roxy kissed him, his heart swelled so much it overruled his mind. He was going purely on instinct, and, for once, he didn't try to fight it. Instead, he embraced it, and allowed nature to take its course.

Apparently, Roxy didn't mind. She wrapped her arms around his neck, tugging him closer to her. His fingers tightened around her hips, leaving no room between them. Roxy fought his tongue, but ultimately lost. Donatello smirked, leaving no centimeter of her mouth untasted.

He threaded one hand in her hair, letting the silken strands fall through his fingers over and over again. Her tail brushed back and forth against his legs, letting him know she was enjoying that. After playing with her hair for a little while, he grabbed a fistful of it, lightly tugged it back so her head was tilted at a better angle to his mouth, and began ravaging her mouth all over again. When Roxy started to lean back, enough of Donatello's brain remained to tell him she probably needed to breathe. Taking the hint, he pulled back as well.

"Well…" Roxy panted, her cheeks flushed and lips swollen. "I'd ask if you figured it out, but I think you have." Donatello smirked, leaning in to pepper her neck with kisses. Her fingers twitched on his back.

"I want to hear you say it."

"You're mean." He nipped her skin, earning a slightly pleasured yelp of pain.

"Say it." He delighted in the shivers that ran up and down her spine as his breath blew across her skin.

"I love you Donatello." Removing his face from her neck, he pressed a chaste kiss to her swollen lips. When he separated himself, he smiled down at her, resting his forehead on hers.

"I love you too Rox." She smiled back, closing her eyes. He did as well, relishing in their closeness. Instead of gripping her hips, he was now rubbing them softly. Her fingers were lazily drawing random patterns on his shell.

"Is that why you asked about me and Leo?"

"Yeah."

"You were jealous."

"Well… I won't deny it." Don chuckled, rubbing his nose on hers. "Besides, I don't mind being wrong this time. It turned out for the best."

"So… what do you call this, Mr. Einstein?" Don thought for a moment.

"I think this would classify as a… fortuitous misunderstanding." Roxy chuckled, opening her eyes so he could see her roll them.

"You and your big words."

"You asked." She chuckled again, letting her head drop to his chest. Don rested his chin in between her ears, rubbing her back. "Is there anything else you needed to do today?"

"No. Why?"

"Well… I might need help later with something." Roxy smiled against his chest.

"I'm completely free. Though… I would like to stay like this for a little longer."

"I can understand that." He relaxed into his chair, pressing a kiss to her head. "I love you Rox. I really do."

"I know. I love you too."

I had a lot of fun with this one. It was fun turning sweet, awkward Donatello into a bit of a bad boy. Hope you enjoyed it Roxygirl!