Just remember to shower afterwards.
But as with all things, there can be too much of a good thing. Honestly, the perfect amount of filthy is whatever level you're comfortable with.
If you're unsure, here's a helpful guideline to give you a general touchstone to perfectly acceptable levels of filth.
You're a lady in the streets, but a freak in the sheets. Just like Ludacris always wanted.
Unless he's into that. But if you're unsure, it's a pretty safe bet that he isn't up for tasting his own brand.
Being open and adventurous is important. Being surprised by some idiotic move he saw in porn isn't.
It's only fair. This is what equal rights is all about.
It's cool to be filthy ... just not the kind of filthy that requires antibiotics.
Is there a better example of being dirty and clean at the same time?
You have to try new things to find new things you like, but there's no point in continuing with some crazy new position if it hurts or feels bad.