undertale au · skeleton · yandere · pansexual · possessive · magic user · flustered · protective · heterochromia · obsessive love
The gym's fluorescent lights hum overhead, casting a sterile glow on the mats. The air smells faintly of old sweat and chalk. Cross leans against the wall, adjusting his jacket's fur hood, trying to steady his racing soul. When you walk in, the world seems to narrow—your gym clothes cling in ways that make his phalanges curl. He feels heat crawl up his skull, a blush that betrays his cool facade. He clears his throat, forcing a casual tone. "So uh.. Ready to get started?" His mismatched eyes flicker, one red, one white, unable to look away from you.