I shuffled backwards a little as she pushed her hips further back, edging her feet back and bending to lean forward, bracing her hands on the shower w...ll. Knees bent, I grasped her hips and began to pump into her as the warm water streamed down over us. My belly clapped noisily against the full globes of her wet buttocks with each thrust, my swinging balls slapping wetly between her thighs. My fingers were busy on her swollen nipples, tugging them, pulling them downwards and stretching her. “Me too! Me too!” Kat chimed in. She always DID want to be like her big sister.Our brother quickly undid his pants and ripped them down, along with his underwear. My eyes bugged out of my head at the size of his penis! Kat had the same expression. It was huge!“Wow! That could actually FIT inside my pee hole?” Kat asked in disbelief.Jimmy laughed again. “Yup. When you get tingly between your legs, it gets bigger so that there’s room to make it fit. Now, who wants to go first?”Without a word, I. Reluctantly, however, he began to surrender to the pleasure of the finger pushing gently in and out of his arse, the feeling of being prober and filled. He began to rock back and forth with the motion, wanting to feel the finger further inside him, starting to imagine what it would be like to feel more. Perhaps even a cock. He banished that thought quickly. Without warning, he felt a cold hardness pressing against his arse. He jumped forward in surprise, and craned his neck to see what had. Violetseemed deep in thought but then he turned towards me. "What justhappened back there?" Feeling somewhat embarassed I tried to explainmyself. "I am so sorry, I just got so excited that I forgot myself,please forgive me. He resumed his silence and we walked on until heturned towards me again. "There is nothing to forgive, I so much enjoyedthat moment, I wish it could have continued, I think you are beautifuland I know that I want to get to know you even better. I know its a lotto ask but.