With TMNT, A Lot Can Happen (TMNT 2012 One-Shots)

'Sweet but Psycho' (Donnie x Yandere! Reader)

(Y/N) has known the turtles long enough, after being rescued from the influence of Shredder, to consider them like her own family. All except for one though; Donatello, the purple-masked genius brother.

However, hearing that he has his crush on April O'Neil, had her both enraged and heartbroken.

Then again, perhaps a single evening with him will change that.

It must be a dream...

(Y/N)... falling for Hamato Donatello.. only to have her feelings thrown back in her face, because of April O'Neil...

Even though, she hasn't actually told him how she felt... because of April O'Neil...

She had to do something about this...

But then she remembered inviting him over for the night while her parents went on a date night...

Hmm... maybe she could work with this...

After another long day of school, (Y/N) as usual was down in the lair to hang out with the turtles. Mainly, and hopefully, Donnie though. You know, before April did so first, since they usually went together.

She was about to enter Donnie's lab to help him out, when April got her chance first, "Hey Donnie!" she said happily.

Too happily for (Y/N) to deal with.

Still, she had to keep her cool, and only waved happily to Donnie, to avoid suspicion of any sorts.

Thankfully, he did so in return. Unfortunately, though, his attention was then focused on April, all flustered and his other typical mannerisms around the redhead kunoichi.

With the pair spending their time together in the lab, it made (Y/N) sick to her stomach at seeing them like this. Not in a nauceous way though.

She knew that there had to be a way to both get rid of April, as well as making sure that she had Donnie to herself.

She also had to do something about Master Splinter and the other brothers, but that was beside the point.

Pondering on the couch, (Y/N) was then interrupted by Leo coming towards her from the dojo, "Oh, hey (Y/N). How are you?" he asked her.

"Not too bad." (Y/N) answered through gritted teeth, but smiled widely to hide her awkward answer, "And yourself?"

Luckily, Leo didn't seem to notice this, "I'm doing okay. Say, can I get you anything to ear and drink?" he then offered.

"Um, sure." (Y/N) before Leo went to the kitchen to get her a glass of water and some leftover pizza from the fridge.

Then as soon as he left the room, it hit her.

'Of course, I can just put a special poison in each and everyone's food and drink. With April's enough to kill, and the others just nauceous. It's brilliant, and they won't suspect a thing.' (Y/N) devised in her head with a smirk, 'Good thing that Shredder also taught me 'the art of poison' for these cases.'

With that, and after thanking Leo for the water and pizza he gave her and ate/drank it all, (Y/N) snuck back home to get to work.

~*~*~*~*~*~

By the evening, (Y/N) has prepared a small gathering in her living room, accompanied by totally irresistible cookies and tea on the coffee table.