One day my sister was in her room reading a book when I walked in. I jumped in bed with her and started to tease her like any other big brother would....I started to tickle her and joke around with her. My hands started to move from her lower ribs up to under her arm pit. "Oh, Eric, stop...stop..." she said. As I fell back on her bed my hands fell across her firm tits. She did not seem to notice and I was sure she just though it was by accident. She threw a blanket over her head and started to. I did this a few times, still feeling his warm wet mouth around my cock, his teeth dragging lightly over my shaft, and then I began licking his balls, flattening his pubic hair with my saliva. I was about to start sucking his dick again, when he got up to turn the music off.I knelt up and asked him if he'd like to fuck my arse, or something along those lines, and reached into my bag to pull out my tube of KY jelly, that so far I'd only been able to use on my own with my dildo and vibrator. I. She took my cock in her hand, gave it a squeeze and whispered:" I like it, let's do it again some time"After that, she pulled up her pants, kissed me goodbye and left.While I was cleaning the cum from the floor A called and said that she's in town and asked if I'm home, she want to see me. I said yes, and kept on cleaning. In less than 5 minutes she was at my door. I was still dazed after fucking E. A asked what's wrong, I said:"hard day" and she replied:" I hope you're not fucking that skank". I just turned and lay down next to her as I was dead tired kneeling for almost 10-15 min.As I knelt by her side he picked my leg and placed it on top of Kavya’s stomach and he lay flat on her grabbing us both together. He kept on moving his hips and now Kavya too was moving her hips upward.I could see his ass move up and down, through the mirror. Kavya’s fingers were clawed on his back, and suddenly he started to move faster grunting “Tum dono ko chodke mera lauda bhi zadne wala hai. Tujhe teri.