Richard, as your record label put out some good tunes in the old days, I wanted to be sure an reply:
1. BBBJ is generally ok IF (AND ESPECIALLY IF) you take the precaution of (1) checking to make sure the girl doesn't have cold sores or other noticeable irritations on / around her mouth, (2) you ensure she uses a disinfectant for blowing you and (3) you wash your LB shortly afterwards. To be extra safe for a BBBJ, I've also heard some doctors recommend trying to take pee after the BBBJ is completed. I guess the idea is that it's like gargling for your LB
...basically helps rinse germs. All of that said, I've had more than my share of BBBJs and have never experienced any kind of problem despite not always following 1-3 above (and certainly not timing a piss to come right after a BBBJ.
2. DATY is another matter entirely in my opinion. The potential to contract an STD from going down on a girl is higher than it is with her giving you a BBBJ. Still, similar rules might apply if you choose to do it. (1) Do a good inspection of her LS before you DATY. Make sure there are no visible signs that might indicate an STD. (2) Finger her just enough to get her wet. If she doesn't get wet or is extremely wet, pay extra attention. Is there any smell that raises a red flag? Is there any discoloration or discharge? (3) Make sure she washes her LS well before you consider DATY.
For both of these, it's important to note that Macau girls receive regular health inspections so the odds of them have an STD while working is lower than in the Mainland where such inspections are spotty at best. Likewise, a girl working in an established, well-run venue is likely to have better access to health care than a girl who's working the streets. As you get more and more to the margins of society (cheap streetwalkers, for example), the risks increase. Personally, if I was into DATY, I'd go a nice KTV and ask the mama-san to help me identify a young girl who hadn't been on the job lunch. Munching box of some girl who's fucked a thousand men wouldn't interest me in the least but to each his own.
Matsu