It’s called a dental dam . It slips over the tongue less sensual .
Here are the rules of the rim game one last time
(1) you cannot get a contagion from your own bacteria. She rims you then kisses you, you cannot get sick from your own bacteria.
(2) if she rims you , and you have a contagion like Hep, meningitis , that can be spread through fecal matter , hence the soapy thoroughly done table shower and toothpaste in your ass.
(3) If she had a dental cleaning that day and you have an anal fissure that’s been bleeding one of you can in a one in a million shot contract HIV .from the infected party. Highly doubtful
(4) DFK is the true culprit for disease - mono, Hep, flu corona virus , Epstein Barr , all spread by saliva .
BBFS you are out of your mind even if the provides tells you she is on prep or whatever . You can still get HepC , the big 6 STDs , warts, HPV you cannot fuck a ho bare . End of story
Now those are the facts
Be well