Originally Posted by
nonpareil
Safe enough.
Avoid if sores/cuts on the genitals or mouth.
If it worries you unduly use a condom.If "reverse oral" can use dental dams (never seen the frigging things), certain types of clingfilm I believe or a condom slit open on one side.
The risks are probably low but some do exist.
Risk for the person giving the blow job a bit more than for the person receiving it.
Chlamydia and gonorrhoea can be present in the throat and possibly be spread orally but the risks for oral STIs are low compared to "bareback" penetrative sex.
Many previous threads on this subject , could look them up.