From his position near the platoon’s Lieutenant, Mark shifted the bulky radio on his back and tried to force himself to lift his head and search for...the enemy. ‘That thing’s gotta be a goddamn recoilless rifle, Lieutenant,’ shouted ‘Hardcore’ Harding, the unit’s veteran platoon sergeant. ‘Roger that, shit. You got any idea where the hell it’s firing from?’ Lieutenant Lester never stopped scanning the surrounding terrain. ‘Can’t be sure, sir. But they’ve probably got it set up on that hill over. .Mommy." That's right. I was just looking over your little library here. Very interesting."She stood up and came over to me. Intense stare. I was shaking with fear. She began running her fingers thru my hair. "I want you to come upstairs in about ten minutes. Have a drink with me. Then I'm going to punish you And wear your skirt when you come up."She kissed me on the cheek and exited. I was truly terrified. The thought of complaining about her snooping around my room and invading my privacy. She was moaning all along and pushing my head into her pussy. She screamed and then came, and juices flooded out of her pussy and licked it dry. I got up and began to put a condom on my re-hardened cock, but she stopped me and said “don’t worry, I’m on the pill.” I said ok and got up and told her to bend over a desk. I slowly began penetrating her tight pussy and when all 10 inches were finally all the way in, she was panting because she had never been fucked by a cock so big. I began pushing. I realized that my sister was sitting in water that had my sperm in it. I thought she might get pregnant that way, so I tried to take a bath after her, but she liked the water cool whereas I liked warmer water, so it only made sense for me to go in first. I was nervous for a few months wondering if she would end up with my baby in her because of my seed floating in the tub. It was even more nerve-racking when she’d have her friends over and they bathed together after me! How would I explain.