Answering for another friiend. Maybe there's not really much to worry about unless you're in Bali or some other third world joint.
A girl who gives me a covered blow job doesn't get a repeat booking. . You get more pleasure and feeling listening to a church sermon.
I regularly had uncovered bj in the swinging scene without issues when single, then several times when punting.
In the later years often stressed out and saw the docs for the tests.
Interestingly they always said the risk to the guy is far less than to the girl as blowing your load often flushes things out. Caveat is no cuts or abrasions on the old fella.
Apparently clamidya is much easier to acquire though. And generally symptomless.
But unfortunately herpies is a real risk and has no cure. So those grinding body slides and close contact is a very high risk. Itās also extremely common.
HPV (warts) is another easily acquired nasty which only needs skin on skin contact. Mainly an issue for us older folks who didnāt get vaccinated when younger as is the norm nowadays. Doesnāt protect all of the strains though.
Itās all a risk and only the individual can decide if that risk is worth the short time pleasure or the long term pain.
Unfortunately the little head often takes over and all rational thinking goes out the windowā¦