My girlfriend won't swallow (don't blame her, lol) but she literally loves to "suck" it all out of me. Feels great... Anyways, I've never asked her to brush at all. She just automatically does it. Mind you, this is all for blowjobs, not sex or anything. I feel like my loads can be pretty big sometimes, and I don't see how anyone would want to deal with all of that and not brush.

If we are giving each other oral before sex, we have never brushed our teeth or even talked about it. After I've went down on her for a while, and vice versa, I'm so damn horny that the last thing on my mind, is brushing teeth.