Finding a specific fake relationship fic

[loozislooz.livejournal.com]

Hello! I fell in love with a fic on ao3 a while ago (with multiple chapters, explicit) and for the life of me I cannot find it anymore! Its about Sherlock and John entering into a fake relationship as there is a killer targeting homosexual couples. They travel to different places- NYC, a seaside town (I think?). They also "join" a Same-Sex Church (or a church that is accepting of them), and I think the murders are also of a religious nature where the couples are murdered together. Also, Sherlock and John buy a dildo and both use it, and John walks in on Sherlock while he is using it and they end up having sex. God I'm trying to remember random details. Any help would be so so appreciated!! Thanks :)

EDIT: I found it! http://archiveofourown.org/works/853517?view_full_work=true