"But she will eventually. One day she'll..." What are we going to do?" You do know Liz that you probably are too?" I'm what?" my sister asked."Super s...exed," I answered."I am not," my sister denied. "I didn't even particularly like it with--" You will, it's in your genes," I predicted."Not in my genes," she answered even as she pushed her breast even tighter up against my side. My cock grew ... I knew that Lizzie would be a screamer with the right man.The week quickly passed. We went on a couple. “Not bad. I am just getting a little sun before I jump in.” She said kicking her legs as she leaned back on her arms making her breast point upwards and outward as she arched her back to look up at me. "Hard to believe summer is almost over."“Tell me about it.” I shrugged and I set down beside her. This would be my senior year and truthfully I was still uncertain what I wanted to do after high-school. I figured college of course but which one and what I would major in I still hadn't figured. " I nodded, despite my thirst being more overwhelming than my hunger. Master must have been thinking the same since he said, "Go and fetch us both drinks and meet me in the living room." I did as told, getting Master a soda and me a glass of water since it's all I'm allowed without direct permission. I handed Master his soda, knelt down at his feet, and gulped down at least half the water at once. Master then motioned for me to kneel in front of him and undid his pants before changing my wrist. "Of course my little experiment in the bathtub helped me make my decision."Mike laughs and picks up my vibrator. He holds it up next to his cock. Seeing the difference in size, I gulp, feeling a slight sinking in the pit of my stomach. "How is that ever going to fit in my ass without it being extremely painful?" I think.Seeing the look on my face, Mike pulls me into his arms. "Don't worry Beth, we have some work to do first. It will be fine and I know I can make you feel great. Just remember.