You're Easily the Worst (Omegaverse! Kaneki...
Kaneki has had some tough times, but for some strange reason, the only person that's always been there has been Shuu, as creepy as he is. The half ghoul begins to take notice of his presence and even chose to befriend him even after all he did. Now, their relationship becomes something more... complicated. Without his suppressants, Kaneki has trouble controlling himself around others, especially Shuu, whom he discovered is an Alpha. His heat is coming soon, and if he doesn't find a mate anytime soon, the greedy Alphas are going to take him against his will.
This is an Omegaverse story. So there will sex mpreg, fluff, and drama. Haha. Enjoy!