Hello - First Post here. Good finding these boards.
I had a sexual health question that I can't find an answer to so thought I would post here. I am a male with a female partner who enjoys anal sex, which we do frequently, and are comfortable not using protection. We have on one occasion had another female partner join us, who also enjoys anal sex, and she was also comfortable being together with us without protection, except for the act of going directly from one ass to another, which she didn't allow without washing first (eventhough there was nothing visibly dirty).
Through research (and common sense) I know that you should never go from anal to vaginal because you are spreading bacteria, and I've read that during group sex you should change the condom when switching partners, but in our case when we are comfortable not using condoms, I haven't found any advice on this.
Clearly I do not want anyone to get ill, but I am questioning whether there are specific risks from going from one woman's ass directly to another? Doesn't seem to be anything additionally risky about this, and it really does interrupt things having to stop, so seeking some advice here. Anything would be appreciated. Thanks.