He stopped before heading into the small cabin on our farm where he stayed and asked if he would bother anyone if he came back down for a swim and to ...it in the hot tub on the pool deck after he showered. I told him that would be fine and that I would leave the pool deck lights on and told him not to worry about lights keeping anyone up in the main house as I would be up for awhile and the boys were both at lacrosse camp for the week. I was alone. I returned to reading my. I moved my hand around my shorts and pumped up and down, oblivious to the cushion sliding to the floor. My hands pumped around the pre-cum covered head and down again, clearing showing the tent in my trousers.“Hang on,” said Emma suspiciously, “Why aren’t you showin’ us yours?” she asked blatantly, Holly giggling as the edge of her skirt tickled her revealed snatch.“mmm....okaaay....”I sighed trying to sound like showing my fully erect cock to my half naked sister and her friend as something I. ’ ‘Good.’ After a while she propped herself on one elbow and began to touch and play with my penis which had returned to it’s normal, rather small and average size. I smiled and said, ‘that feels good.’ ‘I think I’m gonna love this little fellow,’ she said, ‘I know I’m gonna love turning him into a big fellow.’ ‘Be my guest,’ I said, ‘although I doubt that’s gonna happen anytime soon.’ ‘We shall see what we shall see,’ she said and continued to play with me. My cock was still wet from our. Abigail found us that way a little later, when she peeked in to see what happened to all the noise we were making. "I thought you two were going to poke a hole in the boat, it was rocking so hard."I smiled from beneath the damp, tangled sheet. "Margot was rather overactive," is all I said.Abigail laughed at that. "I'd say you boffed her brains out, until she came one time too many and passed out like a drunk on New Year's Eve." That too..." I allowed.That day was our high water mark. All that.