”She squeezed my cock tighter between her breasts as I pushed the throttle up, and quickly found her rhythm, sliding up as we climb each wave, then ...liding back down so I was thrusting in as we hit the water again. It felt about the same as if I had her on her back and was fucking her tits, but I can tell the extra force at the end was going to start hurting her soon.I reached down and took her hand as I throttled back a bit. She looked up in disappointment, “I know Master. That was far more. I tried a couple of times and then her sister came out and I put my cock back into my boxer. At night, the two sisters would sleep in the other bed while I sleep on the one next to it. I would reach out and touch the younger sister's breast, caresses them, played with her nipples until hard. I tried to get her to come over to my bed so we could fuck. But she would not do it for fear that her older sister might be angry at her. So I played with her huge tits. I also sucked her nipples quietly. "Oh no, Louise," he answered meekly.The words 'Miss William' bit into him harder than the straps of his tightand oppressive brassiere but he dare not show it."That's a good girl," she said in her usual patronising tone. "You knowyou are supposed to ask permission and I'm sure you don't want anotherdemerit on your behaviour chart. You already have two from yesterday. Themistress would be so disappointed."Another demerit and he would find himself summoned to Mummy's bedroom andafter being. ’ ‘OK,’ said Cat, taking charge of the situation as I knew she would. She took a look at the blonde woman behind the wheel of the car. I checked my watch, and I knew I had to go. Kissing Cat gratefully and modestly on the cheek, I crossed the pavement. The driver stepped from the Saab and moved to open the rear door. I was delighted to see that Brad had not lied at all about the nice tits, but he had completely forgotten to mention that the woman was tall and had great legs, toned and tanned,.