The rain hammered the windshield as Jake pulled his beat-up truck onto the shoulder of the empty highway. In the passenger seat, the guy he'd picked up at the rest stopsome lean, cocky twenty-something named Marcohad his hand already rubbing the bulge in Jake's jeans.
"Fuck, you're hard already," Marco said, voice low and rough. He squeezed Jake's dick through the denim. "Been thinking about this since you said you had a big one."
Jake killed the engine and shoved his seat back. "Get it out then. Suck it."
Marco didn't hesitate. He leaned across the console, unzipped Jake, and hauled out the thick cock. It slapped against his palm, heavy and veined. Marco spat on the head and swallowed half of it in one wet gulp. His throat worked tight around the shaft while his hand pumped the base. Jake groaned, one hand gripping the steering wheel, the other shoving Marco's head down harder.
"Take it deeper, slut.

Choke on that cock."
Marco gagged but kept going, spit running down Jake's balls. The windows fogged fast. Outside, the rain kept pounding, hiding them from the occasional passing headlights. Marco pulled off with a messy pop, strings of saliva connecting his lips to the swollen head.
"Backseat," Jake ordered. "Now."
They climbed over the seats, clothes half-off. Marco shoved his jeans and briefs down to his ankles and got on all fours across the worn leather. His ass was round and smooth, hole already twitching. Jake spat on two fingers and shoved them straight in, no slow prep. Marco hissed and pushed back.
"More. Stretch that hole."
Jake added a third finger, twisting and scissoring until Marco's rim was slick and loose. He ripped open a condom packet with his teeth, rolled it on, and lined up. One hard thrust and he buried his cock balls-deep in Marco's ass.
"Fuck!" Marco's voice cracked. Jake didn't give him time to adjust. He gripped Marco's hips and started pounding, the truck rocking with every slam. Skin slapped wet and loud. Jake's balls swung heavy, smacking against Marco's taint.
"Take that dick," Jake growled. "Your hole's gripping me like it wants to keep it."
Marco reached under himself and jerked his own cock in time with the thrusts. Pre-cum leaked over his fist. Jake changed angle, nailing the prostate on every stroke. Marco's moans turned into broken curses.
"Harder. Fuck me harder, man. Use that ass."
Jake pulled out, flipped Marco onto his back, and shoved his legs up. He drove back in, folding Marco nearly in half. The new position let him watch his cock disappear into the stretched hole. He spat on Marco's face, then leaned down to shove his tongue into Marco's mouth, all teeth and spit.
They fucked like that for long minutes, the car filling with the smell of sweat, sex, and rain. Jake's pace turned brutal. Marco's cock jerked untouched and he shot thick ropes across his own stomach and chest. His ass clamped down hard.
Jake lasted another dozen strokes before he buried himself deep and came, flooding the condom. He stayed inside, grinding slow while they both caught their breath.
Finally he pulled out, peeled off the rubber, and wiped his cock on Marco's thigh. Marco laughed, breathless.
"Next time," he said, "we do it in the front seat with the seatbelt on."
Jake grinned and started the engine. The wipers cleared the glass. They pulled back onto the highway, still half-naked, the smell of fresh cum thick in the air.