@Chosen-one, I’ve got to be a bit careful here as I don’t want to break any forum rules.
I actually started selling a few pairs of my worn panties recently on a kinky website that’s dedicated to that purpose. I’ve had a couple of requests for what they’d like done with them and how long to be worn and you’d be surprised how many people people sell there underwear.
There is a certain girl on there who, well, I’m quite infatuated with and so I’ve now purchased a few of her items. By far the best masturbation aid I’ve ever used 
As far as MrBB, I know he loves my own worn underwear, I’ve seen them moved or removed from the laundry basket several times now. He knows I know and I’ve started leaving them out for him more often.