The car ride was a glide. Three hours pass quick when you've a dad who tells pretty entertaining stories, but it was still bumpy with the occasional rumble from potholes and grooves induced from long exposure over the years.

Normally this wouldn't bother the younger man who'd long been used to the weathered road from all the drives Dad had taken him on- but he didn't exactly take into account that chugging his bottle in one go to counteract the heat before the drive would make him so bothered. It was a minor pulse at first, growing til Dad’s hand on his thigh had him pausing to look over in favour of focusing on that pang of interest growing between his legs. “That eager to get home, bud? C’mon. Just a few more minutes.” He’d say, before turning on the radio as a distraction.

It helped for a bit, but the bass and its rumble soon made his feet tap and legs become antsy enough that Dad could tell it wasn’t just an urge to get home quick. “All right, gotta piss or something?” The expression his son gave was answer enough and the older man only let out a chuckle. “Well then say so ya lil weirdo! Can’t lie, gotta empty the tank myself.”

It wasn't long before the car was parked on the side of the road, clear of any oncoming vehicles for a long while- no one uses this road much anyway, so Dad just unzips his fly, and flops out his cock with a single paw, sighing in relief as the hot splattering liquid drains into the shrubbery along the outskirts of the road- foliage present on either side of the long stretch of pavement.

He’d feel a curious set of eyes on him when he looks over, catching his son looking away, fiddling with his crotch before pulling out his own length. Not too shabby, he thinks. The boy is probably curious, so he simply pretends he doesn't see a thing, letting the stream come to a slow as it soaks the ground.

He has to look again, the son thinks to himself, eyes set on that thick head covered by foreskin as dad lightly shakes the rest of the golden liquid off making it sway in weight- it has his mouth watering each time he thinks about the image, but damn...who'd have thought he could get away with sneaking a peak like that?

The steady fixation causes him to start growing in his pants once he's done releasing his bladder- the two already set back in the car and driving once more. Despite having seen a peak of it, he's curious and looks down once more between his dad’s legs as he drives, seeing the way his thick thighs squish against a package containing something so…large, in such an unbothered way.

He starts thinking about how used to it his dad must be, having such a fat cock between his legs at all times…he probably feels it when he walks, brushing against his thighs and the smooth of his boxers. He wonders what the heft is like, fishing it out of his pants to take a leak like earlier, or adjusting it when it gets to be too noticeable.

His own erection, now tented in his pants, was more prominent now than his fathers at least- but it was hard to imagine what size his dad could get up to if he himself was hard…was he more of a shower? Or maybe he’d grow to be much more than that…the thought made him excited, and when he was ousted from his thoughts by a question from his dad, presumably from some long tangent he was going on about when he noticed the radio was turned down, he only let out a soft hum of vague answer as he scrambled to look non-conspicuous.

It was noticeable. And the older man only had to take a small peak down before focusing on the road again when his son was looking away outside his window. The position of his legs, and his hands splayed awkwardly on his lap…and there was only one recent thing he could think of to trigger such a cute reaction.

The errant thought of passing curiosity swindled itself into a little fixation it seems, and Dad couldn’t be prouder. After all, he is a catch even without the hog he’s got, steadily swelling in thought of just how much fun he’ll have teasing his son at home.