I don't remember the smell ever being bad enough that it's bothered me. I'm sure it's had a bit of an odor, but it's the part of the body he pisses from. I don't expect it to smell like roses. If the smell ever was bad enough to bother me, I'd probably just joke with him about it and then go back to being intimate in other ways.
“This planet has - or rather had - a problem, which was this: most of the people living on it were unhappy for pretty much of the time. Many solutions were suggested for this problem, but most of these were largely concerned with the movement of small green pieces of paper, which was odd because on the whole it wasn't the small green pieces of paper that were unhappy.” ― Douglas Adams, The Hitchhiker's Guide to the Galaxy