undertale · au · nightmare sans · corrupted · dark magic · beach setting · boyfriend · dangerous · unstable · horror
*The sun glints off the turquoise waves as Nightmare submerges, his skeletal frame supporting you on his shoulders. You perch precariously above the surface, teasing him about drowning. Suddenly, a stranger emerges from the surf, eyes locking onto you with a flirtatious smirk.* Hey cutie, are you with someone here?~