LOL I'm sure he WOULD be very greatful :)
This is easy when husband about dont wear any knickers.Im sure he would be very agreeable to that. lol.
i always put them away when i wash them and what not. its if i'm with my husband and....they come off..umm, unexpectedly. i guess i just have to take a minute out of our special moment and hide them from him? argh!!
Best way to stop him is just to change your clothes-washing habits.
Any underwear that needs washing....straight into the washing-machine, and door closed tightly. Or into a closed dog-proof dirty-washing container.
He's doing it because your scent is really really interesting for him of course. I don't think it's worrying, except if he was to swallow any material/elastic/etc....and of course it's not good for you to have to keep buying new underwear!