TMNT: Once Evil, Always Evil? (Donnie x reader)

Chapter 14

Donnie walks on the rooftops, his black mask making his already red eyes stand out. He was grinning evilly as he stared at the three turtles in front of him. Leonardo, Raphael, and Michelangelo stared at their brother in absolute shock. "D-Donnie", Mikey asked in horror, Donnie laughed lowly...."no, I'm not Donnie, call me Darkness, it has a nice ring to it don't you think?" Raph growled, "no! It doesn't! What happened to you", he shouted in anger and confusion. "Nothing happened", a voice said from behind Donnie. (Y/N) walks around Donnie and stood next to him, a smile on her face. "Wh-what did you do to him", Mikey whimpered, staring at his former brother. "Oh, nothing much, really", (Y/N) said, gently taking Donnie's chin and turning his face towards hers, "I just told him that there was a way for us to be together." She and Donnie chuckled evilly as the three brothers stared in horror.

"That's a lie! Donnie would never betray us like that", Raph shouted, fury entering his mind. Donnie just laughs, surprising the hothead, "how would you know? You don't know anything about me or how I feel!" Donnie glares at his frightened 'brothers', "you always shove me away, make fun of me, and neglect me. When I found out that I'm nothing to you, I decided to take a different path, along side my love." Donnie wrapped his arm around (Y/N)'s waist and glaring at the turtles, smirking, "funny how things work out, huh, BROS", he emphasized the last word through gritted teeth and a malicious growl. "D-Donnie.....", Raph whimpered, he loves his brothers so much that by seeing how Donnie turned out to be, it broke his heart and couldn't keep up his hotheaded front anymore. "SHUT UP", Donnie yelled, Raph flinched at the outburst. "I've had had it with you three, but the good news is I'm not going to fight you", Donnie said, his voice softening a little. "You-you're not", Leo said for the first time since he saw Donnie like this, "no, my new master wants that privilege", Donnie grinned widely as he chuckles.

Shredder came out of the shadow's along with the entire foot army. "No", Leo whispered in horror, "you-you didn't..." Donnie grins evilly, "oh yes...I've told him, everything...." before the turtles could do anything, Shredder and the army lunged towards them and everything went black.

Splinter shot up from the couch, gasping for air. What's going on? Why is he having these dreams? Is Donnie really going to betray the family? So many questions with no answers to any, Splinter doesn't want that. He loves all his sons, and was always there for them, but if Donatello truly feels that way....the very thought of it broke his heart. He had already lost his brother, his wife, and his little girl, he can't stand to lose any of his sons but what should he do?

Splinter doesn't know and he couldn't think of a solution....Tang Shen, what should I do?

Here you go, everyone, hope you like it. I have been thinking about how to settle this, you know, evil Donnie or evil (y/n) thing. Oh and just so you know, I put "her" instead of "you" in this because that's not the real you and also I've been thinking of changing that too, I don't know. What do you think? Leave a comment, thank you