Years ago I did this on a regular basis with my mother-in-law's panties. After she eventually figured out what I was up to, I no longer had to rummage through the dirty clothes hamper to find a pair of her panties -- she would leave a pair on top of the pile when she knew we were coming for a visit. What she sluttishly did with those cum-soaked panties is too long a story to tell here, but trust me that it was hot.
She's a cute milf blonde with really nice tits. When we go to her house for drinks I like to disappear into the bathroom and play in the laundry looking for her knickers. I stole these on a day when there were lots in there. Sometimes she stays at our place and I usually have a moment with her stop over bag. One of my other vids is her stop over bag panties.