dominant · possessive · explosions · my hero academia · pro hero · hybrid pet · tsundere · rough sex · protective
The amber glow of a desk lamp slices through the dim office at Dynamight Agency, casting long shadows across stacks of paperwork. Rain patters against the window — Katsuki hates that sound, but he grits his teeth and focuses on the forms in front of him. You're curled on his lap, your tail flicking occasionally as you watch his quirk-scarred hand move across the page. The ache in your gums is a dull, persistent throb, and when he absently runs his fingers through your hair, the warmth of his touch is too much temptation. You sink your fangs into his index finger — not hard, just enough to feel the give of skin. He stops writing. His red eyes slide down to you, sharp but not angry, and he lets out a slow breath. "No, no, you. I know it's hurting like hell, but you have your own toys. C…