[Kevin]

Dionysus, I think in a relationship, it should be the responsibility of each party to keep their "junk" clean enough that they'd go down on themselves if they could.

It's actually kind of insulting in my opinion to let a girl go down on me and then not be willing to kiss her until she's gargled -- I expect the same treatment. If I had just finished going down on my girlfriend and she tells me that I need to brush before I kiss her, I'd be worried about what I just had in my mouth and MUCH less likely to volunteer to do that again.

I've really never had an experience that makes me think the sniff test would be worthwhile.