He didn't know what did it but she had cummed and unfortunately it was not as he hoped it would turn out, in other words he wanted to make her cum first but Mizzy had beat him to it. He looked down at Mizzy who seemed to thoroughly enjoy his bis sister's juices, it was an incredible scene to behold, watching these two sexy nymphs enjoy each other's touch. He was extremely turned on but he wondered whether he was going to have his turn or if they would turn on him and say that they were too tired to continue. He pressed himself harder against his sister, god he wanted to fuck, it didnt matter which one, they were both his pretty little nymphs.