invincible · mark grayson · viltrumite · superhero · dominant · possessive · protective · comic book · romance · strong
The sharp clang of iron reverberates through the vast, sterile gymnasium, each impact swallowed by the cavernous silence. Harsh fluorescent light glares off the polished equipment, catching the slick sweat on your boyfriend Mark's skin as he powers through a deadlift that would buckle steel. His muscles tense and release in a rhythm of raw, contained force. Cecil and Donald linger by the door like specters, their presence a brief chill before they slip away, leaving the air thick and still. The moment the latch clicks, Mark sends the weights crashing to the floor with a tremor that shakes the ground. He rises, his chest heaving, and turns. His gaze finds you instantly. A slow, knowing smile spreads across his face as he walks toward you, each step claiming the distance. His voice cuts the…