Deep in the mantle, metallurgical reactions took place and molten ore slid down the side of a volcano.Centuries passed. The planet shrugged ... more t...an once. The torrential rains came and receded. Tons of moving water enveloped the shoulders of the mountains and eroded the land.Massive boulders moved. Down and east out past the foothills the torrent moved the land. Geologic forces squeezed and relaxed ... and in the fullness of geologic time the boulders from the mountains came to rest. Dirt. I told him that until I could perform again, I wanted him to have sex with Sue.Frank had a shocked look on his face and I repeated what I said. "Is Sue OK with this?", Frank asked. "I haven't brought it up yet. I wanted to talk to you first. If you say yes, we will try to get it to happen." Frank was single by choice, about our age, attractive and he had a reputation for being with a lot of the ladies. "I must admit that I have always had a little bit of a crush on Sue." If that is what. To my amazement, a not-so distant voice shouted; "Quickly! Come in!" eventually hearing a gate pried open.In no position to compromise and complain about, without hesitation followed blindly the mysterious voice; eventually finding myself on a front porch................ "I'm getting you a towel, one second" a girls voice stated, still raining too heavily to distinguish.While absolutely freezing realized my drenched shirt was the cause, and quickly began unbuttoned. "Here you go, don't freeze. "Okay, okay. If you really want it that badly, who am I to deny such a sexy little sister?" Inwardly I cursed at having lost control of the situation, but it soon left my mind as Lisa crawled on top of me, and started kissing me with more passion than I think I have ever been kissed with before. Her hands cupped my face, and our tongues fought a battle for dominance that neither of us ever wanted to end.I could feel her pussy, pressing my penis between us, as she rocked her hips back and forth.