With the rapid spread of HPV and other STI’s through oral sex, there’s some protection available.

Underwear by Lorals has been cleared by the FDA.
look for “Lorals for Protection”. a 4-pack is about $25 sold on their website or at lingerie shops. Learn how to use a pair here.
The underwear can be used for oral and anal play as well as FF encounters:
The latex panties also work really well for couples who want to ease into exploring oral anal and anal fingering, because they cover the anus, thus eliminating any worry about issues relating to fecal matter…many two-vulva couples enjoy wearing them during scissoring.
https://tinyurl.com/26hxt8ft
check out these links:
Chippy Lipton reviews on the Hub: https://www.pornhub.com/view_video.php?viewkey=ph619918a5c2e57
A discussion in the NYT: https://tinyurl.com/ycztawn2
forbes: https://tinyurl.com/2p8pku68