He seemed a little nervous with us. I smiled at him and said it was great to see him. He smiled and asked how our lake vacation was. We said we had a ...onderful time. Mark told us he had some friends at that lake and they belonged to the yacht club. Carol and I turned beet red. I thought what the heck and said, "Mark everything you might have heard is true." Music was playing and Mark asked Carol to dance. Carol whispered to me, "I'd like to fuck him." He heard her and smirked. Carol took his. Everyone knows that on fridays I'm usual be myself. Wife is working. I heard my mother in law pull up in the drive way. Opened the door & went to help her out. She had some bags & other things. Went inside to put them in the living room. Asked her if she wanted some water. She said no saying she had to use the restroom. No big deal. I was putting things in the kitchen when I heard her come out. She started talking about every day things. Having to go home & clean. Going out of town this. We resumed our wild kissing and my cock was fit to split. I moved my right hand under her blouse and grabbed a tit and gave it a squeeze.Bang. Yet another sound from the kitchen."What do you reckon" I said, "We'd better go look" Yep, come on" Sharon said reluctantly.We hopped off the seat and I wiped my hand on my pants. We wandered over to the door of the kitchen and swung it open and lo and behold here was Sheryl completely naked, on her back, up on the kitchen island bench with Dave the chef. “If you think you are better than us and that’s why you are doing this to get some pat on the back for helping us, then that’s fine by me,” she said. My Mom pretended not to take offense, but I could tell by the way her face twitched she wanted to give the woman a piece of her mind and thought better of it.She added that she didn’t have any cleaning supplies though and looked at my mother expectantly. My Mom agreed to bring our own cleaning supplies when we visited these hillbillies to clean up.