I don't agree totally with this list, I hated the whole beautiful bastard series
8 Series to Start After You Finish the Fifty Shades Trilogy - Hot books for Fifty Shades of Grey fans. These books are worth reading if you can't get enough Christian Grey!
Books similar to Fifty Shades of Grey. I would read Collide Series after Crossfire. I like that besides "This Man Series" there really isn't much bdsm if any. Haven't read the Stark Trilogy yet.May have to add that to my list.
Sylvia Day - Vollendung / Crossfire Bd. 5