The rebel spies had assured the Shoremen command that this operation was nothing more than a demonstration for the media. The result was that the shor... defenses were unprepared for an actual landing.The landing force cut through the town. The JTF staff couldn't believe the success that they were having as the raiding party's reports told of crumbling resistance. Before the LAVs had reached the highway that ran the length of the peninsula, Major General Manlius had decided to expand the scope of. Being concerned, I peeked in to a big surprise. Emily was on her bed. Her one hand was rubbing her breasts while the other hand had disappeared in the open zip front of her pants and massaging her pussy feverishly. I just could not look away from her youthful body. I won’t look for excuses and blame the fuzzy and fogginess of my brain but even knowing well that she was my sister and any odd thoughts would be a sin, I felt myself drawn to her. My hand had started rubbing my quick erecting cock. I thought you might need a little break."That sexy grin of hers told me her mind was thinking something naughty. She pushed the door of my office mostly closed so we could not see the outside .... and no one on the outside could see in. I watched as she settled herself in my chair."hmmm....comfy" she said, as she moved the chair so that it was directly in front of me."and look" she continued, as she pushed the lever to adjust the height, "Just the right spot." Her head was directly in front of. I felt her push two fingers into her cunt alongside my cock. Big tits was moaning and shoving herself back against me, impaling herself on fingers and cock for all she was worth. She came to a mega orgasm, shaking and crying and screaming, until she slumped forward onto the floor. We all sat on the floor for a while before big tits got us all a drink and then she stripped her mate naked and went down on her. I watched them while I finished my drink, my cock was still hard. Big tits mate.