Donnie and Casey Jones have been rivals for such a long time for the love interest of April O'Neil. Donatello has known to love April more than any woman, and the moment she is out of the city for vacation, the rivalry finally calms down. Not only that, Casey and Donnie began to grow a small friendship when it comes to doubts or any other excuse. This is when Donnie feels the science in him between male and female began to go wrong, when he's thinking of Jones, and the thought of male, and make. And who better to help him with this issue? (YAOI! If you don't like, don't read. Also, this is taken place before the invasion or anything of season 3. Basically in season 2.... Kinda)

just a bunch of random jonatello writing i never got around to finishing - show: tmnt 2012 pairing: donatello x casey jones (jonatello/casetello)

The Turtles accompanied with April, Casey, Ice Cream Kitty and now Master Splinter have returned to the farm house once again. Due to the destruction of their city, they are back up state. But while experimenting in the Barn, Donatello accidentally makes 12 year old clones of everyone except Ice Cream Kitty and Master Splinter. But, the relationship between Casey and Donnie may not be what they expected...