Crowley, the fallen angel had just given Adam and Eve the forbidden fruit: An apple. As he crawled in his snake form until above the wall that was around the eden, he could figure out who was standing there..: Aziraphale. They obviously meet before, and talking a bit about Adam and Eve, before the first ever storm started.. The black clouds formed into the sky, and immediately, Aziraphale shielded Crowley from the rain with his wings.