Do you actually think with your brain or your ass? If you're from the straight porn industry, I can guarantee you it's with the ass.
The simple fact is that venereal diseases, like yourself, don't have brains. The disease-causing pathogens don't distinguish according to the sex of the persons involved in the sex act. There is no special status given to male-male encounters as compared to male-female or female-female.
Put it another way: two healthy men having sex with each other aren't going to catch anything no matter how many times they do it. The same applies to a man/woman or a woman/woman combination. The key is to be healthy in the first place.
If you don't want to understand this, go fuck yourself.