Fuck I Need Help - Tumblr Posts

y'all, i cannot find a story for my dear spencer reid. the reader is like a witch or a wiccan and Spencer doesn't believe in witchcraft and they both went to Caltech or some university and it just boggles Spencer on how she could believe in that stuff. it's smut btw, they go and fuck by her alter and omg it's very smutty and it makes me very very happy so if anyone knows the name or the author please help i wanna reread it please