"True, but the question of weather she wipes front to back or back to front is still a mystery. I believe this is what Systematic is talking about."
Not sure I'm following what you mean, but if you mean feces entering the vagina, that risks vaginal infections. Pretty sure some symptoms would give that away.
"As for the oral sex I can see exceptions, she'd have to be a virgin or have been with me for a fairly long period of time."
Afraid of tasting traces another man's member or something?