Christian should remember that bottoming is not the only way you catch HIV, but as Willie D. once said, "Christian's willing to stick his dick in everything but a condom".
So a "TS human" tests negative the day before the shoot. However there is always a lag between the time the infection starts and it can be picked up by a test. I was impressed by how many of your Brazilian TS's were failing their tests right before the shoot, change the timing a few days, and they would be without detectable antibodies but still infectious.
Being a TS hooker means that one's chances for HIV infection are essentially the same as a rent boy. You've been lucky on timing so far Christian, but eventually and unfortunately you'll roll snake eyes.
If we were characters in a Michael Lewis book, I'd inquire if I could buy a financial instrument to short your immune system.
I think it was Penny Flame that raised this point many years ago, before running off to have a real life. Do you miss her? Thankfully you didn't try to crash her recent wedding.
"Are there any objections?"
"Yeh, she won't do me without a condom!"
"That's enough Christian".
"She won't fuck me without a comdom! It's a disgrace, an insult! a human rights violation! Derek Hayes agrees!"
"That's enough!"