When I went to put my dirty clothes in the laundry hamper I found Karen's sexy black lace panties sitting on top of the clothes in the hamper. I was s...rprised to see them there as she usually only wears them when we are planning a night of sex. I took Karen's panties out of the hamper and examined them in the light. The crotch of the panties was damp and there were thick strands of a sticky substance coating the material. I brought the panties up to my nose and smelled them. I knew immediately. We had not brought any swim suits, so they went to their room to see what they had for us to borrow. A few minutes later they came out, having already changed themselves. My sister in law handed my wife a swim suit, and she headed to the bathroom to change. My brother in law tossed me some trunks, and said, you can change in our room if you want. So I headed to their room to get changed. Once I got into their room, I immediately noticed my sister-in-laws clothes rolled up in a pile on the. " she sat down her box and nodded towards the stairs. "I've already had your room done so you don't need to stay in a hotel while we renovate."I felt relief and gratitude. "Thank you, mom... It would have been fine if you didn't." No, it wouldn't have. The room was a poster for tetanus and cancer caused by asbestos inhalation."I looked back at her before I headed up. "Mom, you bought this place?"She nodded. "I hope you like it here." We're staying?" my heart sped with excitement.She smiled. When I first pulled it open I found it to be full of panties, of all types and colours, and I took them out one by one and examined them minutely. Mum certainly wore a diverse range of nickers, everything from plain, white, cotton, high-waisted pants through little, black, lacy numbers to silken crotchless passion arousers. I sniffed and fondled each pair and visualised her in them and me sliding them down her legs.Underneath the panties I discovered a couple of Mum's secret items. The first.