Unless she had been asleep the whole time! Did she just fuck me while dreaming?I suddenly felt like a total piece of shit! I carefully pulled out of h...r. Yep, she was still snoring. What had I done?I covered my sister up and went back to the couch. In the morning she would either mention what we had done, or not.It was a long night.In the morning Reg made bacon and eggs for us. She didn't say anything about last night, making me suspect that she had in fact been unaware of our illicit. The feel of the oozing, squelching, black, pond mud on my feet and legs made my dick twitch and stir, and I had a hard job hiding it when my scardy-cat friend finally decided to come over to the island. Anyway, that got me thinking. The next chance I had to be home alone, I decided I was going to try something. So a few days later in the school holidays, I got a day to myself. My Mum out at work, I walked round the corner to the shop and browsed the shelves for what I thought my make my dick. The bastard kept giving me just a taste and then he'd slow. He was driving me crazy and I was begging continually. His slow strokes were hitting all the right places, but the pace wasn't going to let me cum.Finally I asked what it would take to let me cum. He told me I had to come back every Monday morning and let him have his way with me. I badly needed to cum so I agreed, although in the back of my mind I didn't really mean it. I probably would have agreed just about anything at that point.. He sucked each nipple into his mouth and rolled his tongue around them, savoring his first taste of her feminine flesh.Reluctantly he pulled his mouth off her tit flesh and sat back to enjoy watching Buster devour her. He watched as she raised her hips off the sofa, trying to push her mound onto the dog's snout, trying to pull that long, talented tongue deeper into her cavity."Buster. Back!"The dog pulled back, lashing out at the last moment to get one final taste of the treasure trove before.