You accidentally kiss:
Garnet = Asriel
Amethyst = Sans
Bloodstone = Toriel
Sapphire = Alphys
Agate = Papyrus
Emerald = Frisk
Onyx = Asgore
Carnelian = Napstablook
Peridot = Undyne
Aquamarine = Chara
Topaz = Flowey
Ruby = Mettaton
YOU ARE READING
Undertale Birthstone!
Non-FictionSo, I read the Creepypasta Zodiac book, and I was really impressed, and also inspired to make an Undertale version, but with birth gems. Enjoy!