You see, you don’t see, I see, I don’t see, haifa girl supposes, shindy wonders.
No there is not a specific source for every scenario.
That’s why you need to find out what the Halachah is.
By asking a Posek.
If not before the situation occurs, then after.
Issues of Shomer Negiah certainly seem to be applicable here to me. Is the woman an aishis eish, or other Arayah?