This scenario definitely is a turn on for me., and I wish I was Tim! Started out practicing "safe" sex, and wasted my teens with unsatisfying sex. This is my biggest regret in life, but I am very happy that I now have only bareback sex. As I did with bareback sex, I no longer have a fear of poz men. In fact, they get me so aroused now. Just the thought of many men's strains coursing through my bloodstream is very erotic.
I certainly hope there are more chapters in which we learn how Tim learns to become a gifter as a member of the Brotherhood. Will he help Joel find the next negative bottom to initiate? Will Tim continue as a poz cumdump--collecting even more strains from poz non-members? Oh to be Tim, the poz 18 year old, with life's pozzibilities ahead of him.