We locked the door behind us and she led me into the shower. She pushed me up against the glass wall of the shower and kissed me once more. Our naked ...eenage bodies pressed against each other and I could feel her hand gently pushing against my belly.It really did something to me as I could feel my bladder start to hurt. I needed to pee, and pee badly. She seemed to sense it and got to her knees in front of me. Once again, she spread my pussy lips wide open and looked up at me with a. It's a hot day and we could use a few cold drinks." Sounds good to me, how about you, Kris," Sarah said. When Kris nodded her consent Sarah told us that they'd be there soon.I watched them as they walked to their car. I was getting so horny watching their hips sway and quickly moved from firm to hard. Kathy noticed and slapped my cock. "Hey, that's my sister's butt you're getting hard over!" She was trying to look upset but I thought she was enjoying my predicament. "Kathy, I'm so fucking horny. Although we cannot see it, we hear what sounds like a waterfall. Following the sound to the far side, we discover that there is indeed a waterfall. The springs are in two sections, upper and lower, with the upper springs emptying into the lower at these ten-foot-high falls. We approach and explore them. The water is even warmer here. The spray from the falls mixes with the steam. Visibility is virtually nil. Holding hands tightly, we duck under the falling water. It pours down on us. We laugh. He thick shiny cock helmet splitting her tender flesh wide open and then sinking slowly into her, even further than her fingers could go!! She rolled her hips trying to take her fingers deeper and wondering how much deeper a cock would slide up into her! She shuddered, bit her lower lip.Her now wet and glistening fingers were no longer methodical as she pulled them out and started to touch and rub her clit. They were more maniacal! In her mind her father was there between her thighs and his.