They decide that Armin, if useless in everything else, might make a good enough dog. [non-con, underage, bestiality]

Sometimes sacrifice is not losing, but changing. [Armin/Eren; Armin/OC non-con]

"Damn, you're filthy," Gustav says. "Look at the mess you made, disgusting boy. Who's going to clean it up?" [Armin/OC; non-con, scat, underage]

He hates it. He hates it so much he wants to scream and break it beyond repair. [Armin/OC; non-con]

Armin's bullies don't just beat him up – sometimes they get creative. These are the worst times.

"It's common knowledge, that no one knows how titans reproduce." Armin's voice still wavered even as it picked up strength in its challenge. "So why should titan shifters be considered otherwise?" [Armin/Eren; mpreg]

Without thinking Jean reached out and touched the skin of Marco's forehead. It felt slightly damp, soft and unpleasantly cold, with a give like touching a rotting fruit. Wasn't there supposed to be something romantic in dead bodies, like heroes who kissed their slain beloved farewell before returning to battle? [Jean/Marco; necrophilia]