Pre-seminal fluid + HIV

[dw90]

I'm a young woman working as a performer in the adult film industry. I have been working for the past six months, and we are obligated to get tested every 30 days to make sure we don't have any STD's. I have not gotten any STD's yet, however, some of my female friends also working in this industry have already been exposed to diseases like Gonorrhea and anal + vaginal warts -- STD's like that do not scare me because I know they are treatable, but I am very worried about being infected with HIV. I know the chances of getting it are very slim since we get tested so often, but the chances are still very much present.
All of my scenes end with the man ejaculating on my face or in my mouth (and I do not have any open cuts or sores in my mouth or on my face, so I know I can't get HIV from that), however, I am concerned that the pre-seminal fluid has come in contact with my vagina and could potentially infect me.
My questions are: How long does the HIV virus live outside of the body?

and

How much pre-seminal fluid does the penis continue to release during sex?

During my scenes, before having intercourse, they start off with me performing oral sex on the male performer. Most of the time, I see the pre-seminal fluid and I swallow it. But after the penis releases a little, does it continue to release more during intercourse?

What are the chances of me being infected with HIV in a scenario like this?

Thank you.

[jeezo678]

I know and you know, that wasn`t a public forum question.

[juliano]

I would say that you have reasons to be scared. Some years ago some performers got HIV even with all the checks done. What you have to understand is that you have tested partners in the industry, but i bet a LOT of them have boyfriends/girlfriends and fans that engage them in sexual activities. So i can say you are in a high risk profession, since condoms are almost non existant in the porno industry. As a man i can say that we realease a lot of pre *** during oral and of course during vaginal and anal sex.
And i am considerering only HIV. HPV is a hell of a disease to treat. You can have cancer from that.
My advice: Stop that cause it wont value your life. Get a regular job, and practice safe sex. And make a very especial guy very happy. Best wishes from Brazil baby.