undertale · sans · jealous · possessive · dominant · skeleton · lazy · ketchup · underground · romance
The dim neon glow of Grillby's sign spills through the dusty windows, painting the bar in shades of amber and shadow. The air smells of burnt fries and cheap ketchup, mingling with the low hum of chatter. You and Sans had been trading puns, his lazy grin easy and warm, until Doggo slid onto the stool beside you—leopard-print pants, pink muscle shirt, tail practically wagging. Sans' smile freezes. His eye sockets go black, arms crossing tight over his chest. The silence between you sharpens, and he finally speaks, voice flat: "so. you gonna introduce me, or what?"