"What, what are you doing here?" Billy stammered as threw the magazine under his bed and pulled the covers up tight. The blushing boy's eyes grew wide...as his naked sister slipped into his bed."Time to wake up, sleepyhead," Kathy cheered as she reached for her brother's favourite appendage. "I guess I get the first face full of cum from the unbound birthday boy." Kathy, what are you talking about?" The startled, but delighted, boy mumbled as her magic fingers wrapped around his pulsating pud.. Just a good 50 pounds slimmer. The closer we got the more I was sure it was her. She was close to 5' 10 inches. A very curvy and ample 130ish in weight. Dyed Blonde hair with those black roots. On her it looked great. And those huge breast. I later found to be 42 DD. But its the same Doe shaped almost blue gray eyes that always have me stunned. We are less than 5 feet from the other and i stop and go " Hey Darlin! How are ya?"She smiles wide Im damn good. How you been?"Oh GOD! I say to myself. "And that's Lance over there." Where are you from, sir?" I asked Brent."Sir?" He looked around. "Oh, me? I thought my dad was here. Don't say that word, okay?" Why not?" I looked at him, almost smiling at his theatrics."It's against the rules," he said with a toothy smile."You have a funny accent," I changed the subject slightly, without changing it at all."Do I?" He smiled at me as Sarah left to sit with the guys from school. "Your accent is nice." I sound like everybody else," I shrugged."You. She quickly agreed and we both went into the house.My sister and I now changing into our swimsuits, I continued to think about the look my sister had on her face. It haunted me so much as I hand no clue why or how she would get that look. I now was naked and could feel my cock grow thinking about Taylor earlier in the morning, when she had her gray tank top and short shorts on, as that’s what she wears to bed. But I tried to ignore it as much as possible, I then heard a knock, quickly dressed.