One of the things I really like about my gf is that we are totally open about things like farting. It feels nice to be that uninhibited - we have agreed just to behave as we would when alone.

So we happily fart, pick noses, etc in front of each other (it's quite funny when we're cuddled in bed and I can tell she's about to fart on me because she tenses up. Then we both have a giggle if it really pongs :)

Oh, and as for number 2s... we happily go to the bathroom together for those. Of course we flush in between each of us going, but it totally puts her off when I randomly kiss her when she's trying to crap :D