undertale au · high school · possessive · jealous · prankster · secret rivalry · skeleton · tsundere · romance
The library's quiet was obliterated by the sound of bodies and books hitting the carpet. I'd launched myself at you from behind, wrapping my arms around your waist to bring us both down in a heap. My purple eye-lights burned with a triumphant glow as I grinned down at you, one knee planted on either side of your hips. Cross stood rigid a few feet away, his jaw clenched, watching me claim the moment entirely for myself.