Luc gestured towards the back seat with his head. "No reason we can't both get off, is there?"
The car wasn't exactly roomy, buy Adam guessed that fooling around on the back seat would have to be easier than straining his back leaning over to suck Luc off in the passenger seat. He clambered over into the back, taking his trainers, socks, jeans and boxers off whilst he waited for Luc to follow him.
"You're sure no one comes down here?" Luc asked.
"No one," Adam assured him. "Well, maybe other horny couples, but probably not at this time of day."
He tugged on Luc's jeans, dragging them and his boxers round his knees, before pulling his groin to his mouth. He buried his face in Luc's crotch, feeling his stepbrother's rough pubic hair against his face, breathing in the scent of cock and balls.
"Fuck, you smell good," he said, before moving his face, so he could suck Luc's balls into his mouth.
"Head up here," Luc breathed, grabbing Adam's face and dragging him up for a kiss.
"I'm not sure that's as much fun," Adam said through the kiss and a grin.
"I don't suppose you came prepared with lube?"
Adam pulled away and stared down into Luc's eyes. "You really think I'd drive you out here and not come prepared?"
He twisted round, so he could lean down and grab the small bottle of lube he'd put in his jacket pocket, which was stuffed into the passenger-side footwell. Whilst his arse was in the air, Luc slapped him a little too hard to be classed as playfully and then licked him from the top of his crack to his balls. Adam shivered and collapsed back down onto the seat.
"I thought you wanted to kiss my lips," he chided.
"Couldn't resist."
"My arse is irresistible, isn't it?"
"Shut up and kiss me," Luc said, dragging Adam's lips to his again. "Before I decide that eating your arse is preferable to snogging you."
Laughing, Adam straddled Luc. As they kissed, he squeezed a generous amount of lube into his hand and then fisted both their cocks. The added friction of their hard dicks rubbing against each other made them both groan against each other's lips. Adam began to grind his arse into Luc's lap, increasing their pleasure, as he moved his hand faster and harder up and down their shafts. Their lips never parted, even with Luc's finger dipped to their slick cocks, to scoop up some of the lube. Seconds later, he began to tease at Adam's arsehole.
"You're obsessed with arse," Adam chuckled.
"Only yours," Luc breathed. "I can't tell you how much I wish it was my dick touching you there, rather than my finger."
"Horny bastard."
"And you're not?" Luc asked.
Adam laughed throatily. He could feel himself nearing climax. Luc's finger, which was now half way up his arse, wasn't helping him to hold out.
"I'm gonna cum," he panted breathlessly.
"Me too," Luc assured him. "This is fucking sexy."
"Fisting in the back of a car is sexy?"
"Anything we do together is sexy. You're fucking hot."
With Luc's words ringing in his ears, Adam came, shouting out his orgasm. "Fucking, yes!"
Luc grunted out his own orgasm a moment later. Their thick white semen dripped over Adam's hand and Luc's stomach. They kissed again and then Adam bent down to lick their mixed juices off Luc's chest.
"Kiss me," Luc whispered, shuddering.
Adam obliged, allowing Luc to suck the taste of their cum off his tongue and lips.
"I can't believe how right being with you feels," Luc said. "Nothing should feel this good."
