Meeting Rum & Brandy (!?!)

This is a story about Gin and Sherry, their relationship before You(Arisu)& Shinichi became Kimino&Conan and maybe a little after that ( when Sherry meets both of you)
(BTW, this is all my imagination, don't take it for real)
The characters belong to 青山剛昌, I don't own anybody
Sorry for the title
And no, there is no 424311 Alysses before me