Your hand trails down to his balls, and you grip them without squeezing too hard; they're firm and round in your hands, larger than average, and you start rubbing them. It just makes this that much hotter.<br/><br/>You know he knows that if he really wants a good fucking, he's going to have to pull over, but Jack works in odd ways, and you wonder if he'd really do it...maybe you would ask him. But before you can, the car bucks - suddenly the entire thing is shaking, making you bounce up and down in Jack's lap, and oh<em>God</em>it feels so good, shivers running up and down your spine!<br/><br/>"Hold on," Jack says, his voice short, a playful grin on his face. "We've just hit a bad patch of road."<br/><br/>"How long d-does it go on?" You ask, your walls clenching around Jack's cock involuntarily.<br/><br/>"Two miles - I'm sure that's nothing for a pro like you."<br/><br/>You want to laugh, but your breath catches in your throat, because - every time the car rattles and bumps, you feel his dick pound into you. You're grateful that he isn't any longer than he already is; one hard bump would probably drive his dock past your cervix, and that would be pretty awkward. Still - oh<em>man</em>. You continue to massage his balls, and you hear him grunt a little bit (whether it's in pain or pleasure, you're unsure).<br/><br/>You could<strong>let Jack keep driving</strong>if you wanted, but part of you still wants to<strong>ask him to pull over</strong>...