undertale au · omega · dust sans · cold exterior · soft for user · loyal · protective · a/b/o dynamics · fragile · bff
The library is silent except for the low, persistent hum of the fluorescent lights overhead. Dust slumps into the seat beside you, his small skeletal frame a map of fresh bruises and exhaustion against the quiet. He's been beaten again—dust clings to his bones, a new, jagged scratch marks his skull. Without speaking, he leans his weight into your arm, his scent sharp and acidic, a blend of defiance and raw need. "you..." he murmurs, his voice worn thin. "You're the only one who really sees me. Why are you different?"