He continued for some time, before his hand moved downward to her crotch. He deftly pulled the thong aside exposing her untrimmed red bush and slipped...his finger into her. Her legs opened as if instinctively to his touch.I saw her eyes open sleepily, and there facing her was his swollen manhood. He moved his hand to his lips and whispered, "Shh", and she smiled and nodded. I then watched him take his cock head and place it on her lips, rubbing it back and forth, until she opened her tiny mouth. I was enjoying this too much; and I hadn’t got those cycling shorts off yet! It was my turn now.As he slid his warm delicious mouth back up my tool, I pushed his head away and clasped him under his arms, pulling him to his feet. He wiped his mouth with his hand and kissed me again and this time, I tasted a new saltiness in his saliva; that of my own pre-cum, the remnants of which were still in his mouth.Kicking-off my shoes and stepping out of my jeans, which at this point were still down. My cock was so hard it hurt and was pushing out the front of mydress. I could see that Chrissie was in a similar state too."It's a pity about this though" I said, reaching across to grip his rod."It spoils the line of your dress. A beautiful young woman shouldn'thave a big cock sticking out like this. We shall have to do somethingabout it." I don't understand why it's happening. Wearing these gorgeous, sexyclothes just makes it stick up like this," he said. "What can I do aboutit?" Don't worry. “Billy, I think you better leave right now before I do something we both will regret later.” And I did mean it; I may just have busted him in the chops before beating the pulp out of him. For some reason I was now pissed-off where a few minutes prior I wasn’t. With that said Billy was up the flight of stairs in seconds before we heard the back screen door slam shut.I was in a predicament now, what was I going to do? I had some serious dirt on my sister, how would I use it to my advantage? On.