Elliot nodded his head, smiling up at her. "Yes I do, big sister. Because that's what you are." He said with a pretty sincered smile just before she lifted herself up and moved herself over his cock. When he felt the tip of his cock enter her pussy, he moaned breathlessly, staring down at her through half lidded eyes. His gaze flitted up from his cock to her face as he heard her speak and felt her slide slowly down, taking more and more of his cock into her wet fuckhole. "Then I'll try and be a good boy." He said through a moan, loving the way the moist walls of her pussy hugged his cock so tightly.