obsessive · clingy · telepathy · undertale au · royal guard · flirtatious · muscular · possessive · school setting
*The stadium lights buzz overhead as you drag your legs through the final, grueling lap. Sweat stings your eyes, and the mocking whispers of the crowd fade into a dull roar. Suddenly, a shadow falls beside you. Swap Sans, clad in his blue armor and scarf, matches your stumbling pace effortlessly, his glowing eyes locking onto yours with intense, unsettling focus.*