Originally Posted by xenigo

Should have brought it up in casual conversation. Just say "hey, you should go wash that... smells kinda funky..." and then you'll both have a laugh and she'll shower. Then down the road, if you fuck her again... you can say "hey, your pussy really smells pretty strange again... If you want me to lick that, you're going to have to clean it up... ever think about having that checked out?"

I've had that convo a few times. Goes over fine.