Yes: Jessica does make you cum. (+1 forward taken)

"Mmmmm, Jessica," you tell her, "you're going to make me cum."

"Mmmmm, I want it." Jessica tells you, before she resumes sucking your dick.

The closer you get to cumming, the harder she sucks, and the more she strokes the base of your big dick with her hand. She's now determined to make you cum, eager to swallow your seeds, then feel your tongue on her pussy. Of course, she now has to get her timing correct, if she's going to swallow your seeds when you begin to spurt.