<div class="floatright">(https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcRmPUiVC6LA6Xuzfkvq0y9xTEjIE5vGKGyitkwjEJc77CMOwBJI)</div>Biting hard on the panties in her mouth, Cassandra closed her eyes for a moment as her fingers continued to do their work. She opened them again to watch some more of the show unfolding before her and her fingers worked more furiously as she imagined herself in her sister's place. She heard Celeste's words of encouragement and nearly gave herself away as she teetered on the brink of orgasm from the sound. She backed off her tempo, slowly stroking back and forth along her slit, focusing her attention now on her nipple, rolling it between her fingers and pulling the hard peak.<br/><br/>It had never occurred to her to be jealous of Celeste's boyfriend. Not in the way you would expect, anyway. She had never had any trouble attracting guys, and could afford to be quite choosy. The jealousy stemmed from her jealousy of Taylor himself. A small part of her felt he was stealing her sister from her. By paying attention to a boyfriend, Celeste was paying less attention to her. The solution? Just like everything else that came between them in life...share. And what a thing to share. This was the best of both worlds. Taylor was quite the catch, and Celeste? Well! She would have her sister back and more, if things went according to plan tonight. The thought of what they might be doing together later brought her once more to the brink and she bit down hard on the panties again, panting.<br/><br/><em>'Hurry up Celeste! God! You're killing me! Just give the signal already!'</em>, she thought to herself as she tried to hold back again. If she kept this up, she'd cum as soon as he touched her! She knew Celeste wanted her fun, but a little consideration, please!?