My longest Apritello one-shot so far, based after the events of "In Dreams" (Episode 5 Season 3). Sorry its taken so long guys.
Summary: April is still worried about Donnie and goes to check on him.

"He's not breathing. Donnie's not breathing!"

April's eyes shot open and se bolted upright in bed, her heart pounding and her breathing heavy. This was the fifth time that night she had woken up in a wild panic despite knowing that the Dream Beavers were gone and that all four of her ninja turtle friends were alive and safe.
No matter how much she tried, April couldn't shake the image of her best friend slumped against the sofa, asleep like his brothers, trapped in the world of the Dream Beavers who were draining the life out of them. She had tried everything she could think of to wake them, but nothing had worked.

Time and time again she had checked their vital signs as they became weaker and weaker.
But what had scared her the most was the moment when she realised Donnie had stopped breathing. Desperately she had searched for a pulse, a heartbeat, a breath, anything! But it was no use, Donnie was gone. Or so she'd thought.
It wasn't until Casey had smashed the one thing keeping their friends in the dream world did any of the turtles start to stir, one by one waking to the sight of the now tiny toy sized beavers that had escaped into our world. Donnie had been the last to wake. The sight of his chocolate brown eyes finally opening, and his chest expanding with air had filled April with such joy and relief that she had flung her arms around him in a tight hug kissing his cheek, not caring if the others in the room saw.

Kicking the duvet back, April pushed herself out of bed. She wasn't going to be able to sleep unless she know he was alright. Quietly she exited her room, careful not wake her friends, sleeping in the neighbouring rooms. Crossing the hall, she slowly pushed open the door to the room that Donnie and Mikey shared.
Popping her head in April spied the sleeping form of Michelangelo laying sprawled across his bed, gently snoring and mumbling something about pizza and ice cream kitty.
Shaking her head and smiling to herself, April turned her attention to the bed nearest the door, finding it empty. "He must be in the barn" She figured, making her way downstairs and out towards the barn where Donnie had set up a make shift lab.

Being the insomniac of the group, Donnie often stayed up late into the night, tinkering with one of his inventions or working on one of his many projects.
As she neared the barn April could hear him working on the Party Wagon. The familiar sounds already relieving some of her anxiety. She could just imagine the look on his face as he concentrated, eyes narrowed and the tip of his tongue poking out between his teeth. She'd never told him, but she thought he looked adorable like that. A few months ago, April had realised she thought of Donnie as more than a friend. Since then her feelings for him had only grown but she was too afraid to tell him.
Giving the door a shove, April entered the bar, quickly spotting Donatello's legs sticking out from under the van.
"Hey April" he called, pausing for a second to see who had entered "Can't sleep?", she shook her head, crossing over to sit next to him, watching him work. He must have seen the worried look on her face as he pulled himself out from under the vehicle to sit beside her, toying with the wrench in his hand. "What's wrong?" Donnie asked watching her with concern on his face. Although Casey and April had filled the guys in what happened whilst they were in the dream world they hadn't told them about Donnie's brief encounter with death and she couldn't keep it to herself any longer.
Throwing her arms around him, she hugged him tightly as if she was afraid she'd wake up to find him gone. Tears starting to roll down her face which she buried in his neck as she released all the stress and worry that she'd been holding in. After a few moments, the turtle hugged her back, startled by her sudden movements. The wrench slipped from his grasp, clattering to the floor.
"A-April what's wrong?" he stammered pulling slightly back to see her face, brushing away her tears with his thumb. Sobbing April told him the whole thing, her voice shaky from crying, unable to look at him.
"I failed you Donnie" she finished staring down at the floor, "You died and there was nothing I could do to stop it".

Donnie was stunned. He knew that he and his brothers had been close, but he hadn't realised just how close they'd come. Though it did explain the concerned glances April had been giving him all afternoon and how she'd quickly dash out of the room if they were left alone. She had been trying to hide how worried she was.

"But you didn't fail April" He told her pulling her into his lap, gently crushing her against his plastron. She could feel his heart beating strongly in his chest, reassuring her that he was ok. "You reached me whilst I was in the Dream Beavers world. You told me to wake up. Twice. That's how I figured it all out. You reached the others too April. You were there for me, for all of us"
"But it wasn't enough" April whispered, "You still died"
"April" pulling back Donnie, grasped her face in his large green hands, forcing her to look at him. "Do I look dead to you?" she shook her head. "I may have been gone for a moment April, but that's all it was, a moment. I came back, just like I always have and always will".

Feeling his hands drop to her shoulders, April finally relaxed, releasing a breath she hadn't realised she'd been holding. He really was alright. "Is that's what's been bothering you?" he asked gently. She nodded "It was the worst moment in my life. You mean so much to me Don, I don't know what I'd do if I lost you, and for a moment there I did". Her voice broke as she finished the sentence.
"Well you don't have to worry about me, I'm not going anywhere" he reassured her pulling her back into a hug.

They sat there for several moments in silence, April curled up in his lap, staring into each other's eyes. In his she saw only love. It gave her the courage to admit what she had kept to herself for so long.
"I love you" she told him watching as his eyes widened and his breath quickened.
"Y-you do?" he stammered as if he couldn't believe what he was hearing. She nodded, hoping that this was a good sign. Although she had overheard his brothers teasing him about having a crush on her, part of her still felt nervous admitting this to him.
"I love you to April" Donnie replied resting his head against hers. His arms wound round her waist whilst hers, went around his neck. Tilting her head up, April gently pressed her lips to his feeling him freeze for a split second before returning the kiss passionately, releasing all the emotions that he had kept locked up inside him since the moment he'd first laid eyes on her.

Although his mouth was slightly wider than her own, April was surprised to find that his lips were very much like a humans, smooth and soft yet firm as they moved against hers.

They had no idea how long they sat there, wrapped up in each other's arms, their lips dancing together. The barn could've caught on fire and they wouldn't have noticed.
Eventually they parted, breathing heavily. "Wow" Donnie breathed seeming dazed.
"Wow" she replied equally dazed.
They chatted for a bit once they'd gotten their breath back, their conversation ending when April yawned, tiredness catching up with her. "Am I boring you?" he joked flashing her favourite gap-toothed grin making her giggle. "No, but not all of us can stay up all night like you". Donnie chuckled
"Come on sleepy head". Detangling herself from him, April wandered back into the farmhouse, Donnie following her, flipping off the light in the barn as he left.

Back on the landing outside her room, Donnie said goodnight, before turning to go back to his room.
"Umm, Don?" April said nervously fidgeting as he paused to look at her. "Would you stay with me tonight?" Despite knowing he was fine, she didn't want to be revisited by the images that had plagued her earlier. He smiled, nervously scratching the back of his head.
"S-sure, if that's what you want"

Inside her room, April crawled into bed, shifting over to give the turtle some room as he joined her. Pulling the covers up over them she cuddled up to his plastron, laying her head against his chest, listening to the sound of his heart beating. Strong arms encircled her she felt him rest his cheek against the top of her head. "I'm not going anywhere April, I promise" he murmured into her hair.
"I know" she mumbled already half asleep, feeling him chuckle quietly at her groggy response.
Within a few minutes April was asleep, the sound of Donnie's steady even breathing and beating heart a happy reminder that he was alive and safe.

Hope you enjoyed :)
Might be a while till the next one as I'm going into placement at university and writing my dissertation. Sorry in advance for that x