Our Black Blood I

Prequel of 'OBBII'. Sirius's problem. How it all started. Why he is Harry's godfather? The only dream Sirius wanted was shattered, James helps his bestfriend. A story about friendship, drama, family, H/C, bromance and with a slight touch of humor. Not interesting as it's more of a prequel. However, it still can be considered as an one shot. Contain Slash, AU, mention of mpreg.