I'm sorry, but I'd have to go with I'm willing to pay to not receive them.
I can stretch my mind to understand some weird fetishes, but dirty panties isn't one of them. I mean women poo and piss just like any other fellow of our species.
The late Dwaine Tinsley (RIP) had a field day with this kind of stuff when he did his "Chester The Molester" comic in Larry Flynt's Hustler Magazine. Lot's of times Chester was all for it.