Yes! 😛 You can catch an BBSTI be engaging in fellatio, cunnilingus, a combination of both (69), or anilingus (stimulating the anal region with the tongue). During cunnilingus or anilingus, it is recommended that you wear a dental dam. This is a sheet of latex that you put on your partner’s vulva or anus to protect yourself from BBSTIs. You can by them (even flavoured ones!) in a drugstore or sex shop or make one yourself with a condom.
During fellatio, you can use a condom: there are flavoured condoms that are specifically designed for oral sex. However, a condom won’t protect you from genital herpes, human papillomavirus (HPV), pubic lice, or scabies, since the infection in those cases may be outside the area covered by the condom.