An AU setting where Sebastian goes into heat for the first time and is found by Claude. Two warnings: one, this is rated Mature; two, there is Gender-Bender, MPREG, and OOCness.

What happens when two demons cross paths in the very vast planes of a realm in a time before their masters entered their lives? What occurrences could have taken place that gave them such a fond memory of one another and... what tore them apart? AU setting in an alternate demonic realm. Collaboration story with another. Please review. Expect sexual relations.