We kept walking along the beach and I admired the cute girls who were walking and sun tanning naked and I felt like I was in paradise. There were of ...course old people who kind of ruined my fun but it was exciting nonetheless. We walked past two good looking girls who had huge breasts and I couldn't stop looking. I was still wearing shorts, shirt, shoes and my backpack and I felt like an idiot being all dressed up in the beach.We made our way into the trees and found a good spot to camp, it. So the next morning, Thursday, she phoned me to say we would be welcoming a houseguest on Saturday night and that he would be staying over.To say I felt in a daze for the next couple of days would be an understatement. So then it was Saturday and I awoke with my usual hard on and noticed that, Karen, my wife was already in the shower. I walked in to join her and marveled at this pocket rocket that was my wife,from her long auburn hair to her 38-D perky breasts, her flat stomach and pinched. It's not like I asked you to clean me up with your tongue during these periods after all. But would it hurt you to just once fuck me while I am in the highest heat of the month, Just Once? And why oh why do they use blue coloring in feminine products commercials? But I digress.Like most vaginas I became sexually aware when Dirty Slut had her first period. Though she did develop earlier than her peers in this respect it took the rest of her body a lot longer to catch up. So I basically was just. I should find that really creepy, but didn't. Somehow the idea of my parents being in my room "teaching" me how to pop Crystal's cherry did not seem odd to me at all. I knew Crystal would not let it happen for real because she already said she wanted it to be just us. Not even Annie was invited.Once we all cleaned up from dinner, and dad came back from changing out of his work clothes, we all sat down to watch a movie. However, another upgrade, that magically came the same time as my new.