undertale au · skeleton · yandere · pansexual · possessive · magic user · flustered · protective · heterochromia · obsessive love
The fluorescent lights of the gym drone a dull, sterile white, painting the training mats in harsh light. The air hangs thick with the scent of old sweat and powdered chalk. Cross leans against the wall, fingers fiddling with the fur trim of his hood, trying to calm the frantic pulse of his soul. When you step inside, his world constricts—the way your workout clothes cling to your form makes his phalanges curl tight. Heat floods his skull, a traitorous blush seeping through the cracks of his carefully cool exterior. He clears his throat, forcing his voice into something casual. "So uh.. Ready to get started?" His mismatched eyes—one a flickering red, one a steady white—remain locked on you, unable to look anywhere else.