She was wearing a nice pair of tight jeans and a white tank top. She had to lean over me on a few occasions and I thanked every god I know that she wa...sn't wearing a bra. I could see the bigger part of her amazing cleavage and I could feel her warm breath on my face. I didn't want this to end. But it had to.I asked her for water and she happily obliged. I really needed it because I was already burning up. She bent down a little to grab a bottle from the fridge and the view of her perfect ass was. We then looked at some more mature pictures. I found a site that advertised seventy year old grannies. One picture showed a wrinkled older naked lady with a big smile as she posed showing her bald pussy.I was rather surprised that mum wanted to see sexy pictures on the internet. I was in no hurry to turn off the computer because my cock was buried deep in her wet pussy and we often made small moves.She said, “Let’s lay on your bed, but leave the computer on this group of pictures.”We moved to. The cave was still the kitchen and bathing area since the water came in there.It had almost been a month now and we were all but done with the new cabin. Marge came for the last night she owed to me. This time she brought straps of leather and requested that I tie her to a wooden pole; all exposed and spread wide open for me to have my way with her the entire night. I knew it was not worth the effort to argue so I asked her how she wanted to be bound. The long rod was centered at the back of. Summer was going to be difficult, but we worked out a plan where she would visit me for a couple weeks, and then I would spend a week up at her parents' place.The plan worked nearly perfectly, except that Trish happened to be visiting when my father hosted the annual summer picnic for the business. I knew that Steven and Mildred would attend, and had little doubt that Janet would also show up, so I tried hard to find a way to avoid showing up.My father insisted, and so on that warm July.