I ran across Pendragon's story archive on VCL. Nobody has mentioned it here so I'd thought I'd post a link to his latest story. It is primarily muscle growth with BE. There is also a bit of Amazon in it.
All of Pendragon's stories start out with muscle growth with BE. Most have TF and a few of GTS.
Here's the link to his stories:
http://us.vclart.net/vcl/Artists/Daniel-V/Stories/
Here's his latest:
http://us.vclart.net/vcl/Artists/Dan...msonClover.pdf