I gently push down on her shoulders until she is sitting on the couch as I sit next to her. I slowly slip her dress down exposing her ample and creamy...looking breasts. I can see her nipples hard as I feel my own get hard as a rock. I lean down taking one nipple into my mouth sucking it tenderly, she begins to slowly moan. I move my way down with my mouth continuing to take her dress with me. I stopped just as I got between her legs and saw she had no underwear on. By now she is moaning even. Needless to say I spewed my cum all over the inside of my sleeping bag. It was glorious! I spurt and spurt and my body jerked and jerked as I emptied myself of my lust as Sandy's fingers continued to pump me, becoming coated with my sticky cum.Then finally, after I had nothing left, my sister pulled her hand out of my sticky briefs and as she brought it out into the dark of the tent she brushed my lips with her sticky fingers. I instinctively rubbed my mouth with the back of my hand. I didn't. "She stopped, wiping a tear from her face and clearing her throat before continuing. "Once the fighting began at the two bases, I ordered a general mobilization of the entire MPG. My purpose for this action was nothing less than to take control of this planet, to seize it from WestHem in the name of the citizens of Mars. This goal was successful. As of 1520 hours today, the Planet of Mars is firmly in the hands of the MPG."She took a deep breath. "This is where my actions will stop without. "What's going on?" I asked Patty."Kristen and I had a very long talk yesterday," Patty said, looking to Kristen to make sure that she didn't mind. Kristen nodded her OK.Patty continued, "It seems you didn't fix everything. It seems that Kristen thinks your semen, in her own words, 'tastes better than chocolate.' And she cannot orgasm without it in her mouth."Oh, fuck. I looked around for my bag with the roll of tickets in it.Patty noticed my look, and said, "We talked about it. Kristen doesn't.