I take your hand and guide you towards the bedroom. I stop for a second, kiss you lightly on the lips and say “Do you trust me?” You nod your head...and say “Yes, of course David. Why?” I show you what I have in my hand. It is a satin lined velvet eye blind. “I would like you to wear this. It will heighten your senses as I pleasure you. I promise I will not hurt you in any way, but if you are uncomfortable in any way with what we are doing tell me to stop and I will, at once.”“No David, I know. Maybe Kimber was right. Maybe she was far, far more insightful than I gave her credit for.I slept restlessly, tossing and turning so much Kimber complained. She was bright and energetic in the morning, giving me smiles and a kiss before heading off to class.I moped. I wandered the house at loose ends, the closed door down the hall threatening me; something I feared. Twice I approached it and turned away.Mid afternoon, I sipped scotch - something I never did at that hour - and tried to steel. I want you to know it's your sister riding you not some hot piece of ass." "Oh I know it was you Em. How can I fucking not? Also you are definitely one hot piece of ass." She smiled at me and stood up lifting one leg over me and resting her knees next to my legs. She lowered herself on me and I could feel my dick rubbing against her pussy. It stayed in front of her and the shaft of my dick was wedged in between her pussy lips as she slowly grinded against me. She started lifting up her shirt. I moaned with excitement as he started to grind his hips and gently rock back and forth sticking his dick further in my mouth. I moved my head forward to take his full length and then I grabbed his ass and started pulling his ass towards me to make his thrusts more powerful. He was now slamming his cock deep in my mouth. I loved how he would bang against my face with his body and his balls would rise up and slap me on my chin as he fucked my mouth harder than anyone ever had. I was very careful.