Out Of The Blue Balls

It was on week two of our road trip as my husband drove on to the next overnight stop. I could tell my Son was getting a little bored with being tied to the hip with us both. I told hubby we were going to shower up ahead of getting there so he would have enough hot water. He thanked me. On my way to the bathroom I whispered to my Son, “Come with me, sweetie…” I told my Son I was going to shower and I invited him in with me to, “Save water.” He looked a little surprised and asked if it was okay with his father. I told him he didn’t know but I was insisting. Getting in the shower with my Son started out fun and playful. We kept bumping into each other as we motored down the highway. He even wanted to wash my back for me. He turned me so he was behind and started to soap me up. When I looked down behind me,I saw him getting hard. His hands went from my back, to my waist, then my hips. Then he moved on to my front as he moved his hands up on me. I was nipping out big time. He soon discovered my nipples when he brought his hands up to feel my boobs. I realized everything had turned sexual now and he wanted me. I told him he needed to stay quiet. He leaned me over and started in on me. I turned the water off and let him press me further until he was fully in me, balls deep. I grabbed the shower bar as his thrusts became faster with more force. He was really getting into me now. In and out, in and out, my Son took me from behind in steady rhythm. He was doing such a wonderful job on his Mother, I started to quietly cum on him. I couldn’t believe he was lasting so long as my legs started shaking as he made me cum again and again. My Son was rock hard and began to slow his thrusts. He tightened his grip on my waist. I knew he was getting close as he started to bury his cock as deep in me as he could, until suddenly, he began to quietly grumble and grunt with every shot of cum he started to pump into me. I white knuckled to shower bar as he continued to take his dear Mother from behind. I remained quiet while he continued to press me and finished as hard as he could in me. He remained inside of me for a minute while he continued to recover. I heard some of his cum land on the shower pan after he pulled out… he had so much cum for me. I turned the water back on to finish what we started. What can I say about the hottest sex ever…and as an added bonus, we did save some water!