In theory, they're independent stories... even if you buy Paul at the auction, you have the possibility of buying David later, when you come back to see other auctions.
In this case, what choice did you make in Paul's story? Did you keep him as a slave or in a relationship? And if he was a slave, did you share him or not?
I'll check this
It's so strange because before launching this new release, I simulated a new game... I played through the whole story of Paul and David... and everything was fine. Even though I bought Paul first, I was able to go back to the auction, and when it was David's turn, the option to bid on him appeared as normal... I did... and bought both of them.
I couldn't repeat the error you're describing, so I can't figure out where the problem might be.
If you can repeat the story and give me a detailed step-by-step description of what you did and what exactly happens, so I can replicate it here.
I bought one (Paul) the first time and had a meeting with him (using the softest possible scenario). Then I repeated the same with David - bought him and had a "soft" meeting with him. Then I completely finished Paul's story using the "love" scenario. After that, you can't buy David back any time you visit the auction. I can provide a save file if that helps.
