This was more than anything his 17 year old mind could have imagined, and he gulped, the sound audible in the quiet classroom. He saw her unbutton he... blouse, saw the beautiful satin bra emerge and watched as she touched her nipples, pinching them and squeezing them until they stood out through the material. He was so turned on and wondered if he was meant to be doing something. Did she expect him to try and touch her? By this time his confined erection was becoming painful, and no matter. Fortunately for Sally, Duke liked taking her orders and he did his best to follow her every command even if he didn’t agree with it.The first two years passed quickly and then all of a sudden Duke was double the weight of Sally and he could press her to the carpet with one paw on the back of her pretty little neck.Two things happened that changed things between them at this point in a way that spelled trouble for Sally and a lot of fun for the huge Great Dane with the impressive doggy dong that. Crystal pushed her nakedness against me, "Thank you for sleeping with me again last night. I don't mind the others in our bed, but it's you I really want there. Despite all our playtime during our travels, I always felt special when you found your way back to me, even in the middle of the night."I said, "Or you found me after playing around. I have always loved our middle of the night trysts."Crystal laughed, "They usually wake up our bed partners, if we have any."I chuckled, "That's because. I did. I heard a lot of noises. I also felt something being set beside me. After what felt like forever, she said, “Ok. Open your eyes.”I was speechless. My sister was naked with a red ribbon wrapped around her waist. “I am your present. I am giving you my virginity. Open the box next to you.”I opened it to find a strap-on.“Sis are you sure? You said you were saving it for someone special.”“I have and I found that special someone. It’s you sis. My one true love it’s you! I have never been surer.