Marilyn's pussy was so hot and damp, I never wanted to pull out. I started thrusting slowly, when Marilyn shouted, "Fuck me, goddamn it! Don't just si... there, use that thing for what you brought it here for. Fuck me!"I started to thrust in earnest. After only a short while, I was pumping like a madman, getting closer and closer to cumming again, and just as I was reaching the point of no return, Marilyn cried out, "In my ass! Put it in my ass! C'mon, I need that big cock up my butt!"Well, who. Both then given new identities and cared for until they were ready to make their own decisions, both had joined the police and been recruited as undercover operatives, both determined to avenge their family and bring down the man who had destroyed them.At 26 yrs old, 5'6'' tall, long blonde hair, blue eyes, 36d/26/36 body, stunning looks and highly intelligent Julie found undercover work was her forte. Using her looks and body to worm her way into the organizations under surveillance she had. "Well let's have a glass of wine if thats okay?" I asked them both, to which they both answered in the affirmative. I went to the kitchen to pour and I suppose to let them get acquainted. But to my surprise they both joined me in less than a minute. "I thought it would be less awkward if we all just had a casual chat in here," Colin offered, "I find couples are more relaxed just chatting in the kitchen to ease everyone in, so to speak."We all smiled. It was true, for some reason, standing. "Hmmmm, and you are my very BIG brother." She said as she slipped her hand inside my waist band wrapping her cool, delicate fingers around my shaft.I moaned inspite of myself, "we can't! You're my sister, I'm married, you're married..." It's not like I want your k**, and it's not cheating with family." I could hear the smile in my sister's voice as she continued stroking my meat."No, we can't." I said firmly, trying to get a grip on myself.Suddenly my sister sank to her knees in front of me,.