See how far she'll go for money

"Hey, slut," you say to the girl. "You do know I'm not just paying for head right? How long are you gonna keep sucking?"

Seems you threw her a little off guard with the question. She pulls back to talk to you, but keeps her hands on your cock, still stroking. If you couldn't see the nervous look on her face, you'd almost think she was a professional at this.

"Um, I am kinda short on funds but I'm not really in it for the money. And I'm not really looking to do more than this," she says, looking up at you.

"Well you better think again, because I'm not paying a grand for head, as decent as you might be."

Still looking at you, she pulls one hand from your cock and spits into it before massaging your balls. Her nervous look turns into an impish smirk as she alternates between gently squeezing your balls and lightly trailing it with her fingers, making your balls tighten from the sensation.

Keeping your cock rock hard, she strokes it from the base to the tip, gradually tightening her hand as she brings it back down to the base. You grit your teeth as she does this, her hand almost feeling like a pussy with how soft her skin is.

You start leaking precum, fingers tightening in the leather seats of the van. You didn't expect her to retaliate this way, and your moans fill the bus as she plays your cock like an instrument.

"Are you sure I can't keep doing this Mister?" she asks smiling, "You seem to really enjoy it?"