7-9: Rebecca cums while she rides you, while you don't cum.

Rebecca works her way back onto the couch, straddling you this time, as she kisses your lips. Then she gently breaks the kiss, grabbing your dick with one hand, and grabs onto you for support, as she lowers herself onto you. As she does that, she realizes just how big your dick really is against her tight pussy. So she slides you in slowly, gyrating her hips as she goes down further. Now she starts to bounce up and down your length. At first, she does it slowly, letting her pussy adapt to your big size. After that, she starts to gyrate her hips, bouncing up and down on your length while she does that. Time passes before she really starts to bounce up and down your length at a good pace, while you wrap your arms around her, to keep her from falling off. She gasps, keeping it as quiet as she can, her breathing becoming heavier and faster. So when she does reaches her climax, she grinds her hips down hard against your hips, milking your dick with her pussy walls, while her juices oozes down your length.

(Mark +1xp for making her cum. Running total of 17xp.)