I just discovered that I like to lick my wife's butthole. We tried it the other night and I just love it....she loved it too...it drove her wild. I did this two nights in a row after she got out of the shower. She cleans very well and it tasted good. However, I got concerned with safety and started doing research. I notice the sites always say for best safety to use protection but to me that takes away from it. It excites me to actually lick her butt with my tongue. Whats the safest way to do this with no protection? Is it ok as long as she washes very well?