This is another hot one. The progression of the man's Dominance, and of the girl's sexual training and submissive conditioning, are both very believable.
This is a long, well-written story by a very good author. It's not so much a stroke story as it is a well-written story that explores long term D/s (Dominant/submissive) relationships.
Rachael Ross has a number of good stories. Some suspension of belief is required for this one, but it's definitely lustful. There are hints it could be expanded.
Topcat's stories all involve black bull dominance. Most (including this one) are incomplete. I think his wife caught him and forced him to stop writing.
Silkstockingslover is a prolific erotica author. Her stories are very well written, and usually involve lesbian D/s. While her works appear on many forums, the ones here are well worth reading.
No way I could make a list like this without including at least one story by Stepdaddy. He's got a bunch of good ones. I'm limiting myself to one for this list.
