Alan pulled himself up, then down, finding his pace. He groaned, feeling the fat cock occupying his private passage. Before long, the zealous young man was bouncing on Dean's lap as Dean bucked upward. The man's thick pole strained Alan's anal opening, rubbing aggressively at his insides. It felt so good, like an itch being scratched. Alan needed that big thing inside, roughing up his guts. As Dean's cock continued jamming at Alan's prostate, the teen's rock hard pillar drooled out a river of clear, slick liquid.
Dean's large, strong hands tried to consume Alan's trim, younger body. He held the boy's slim sides, lifting and lowering the smaller guy onto his cock. Dean fervidly rammed his unit into his nephew, hammering the over-stimulated fuck-button hiding inside the boy's anal canal.
Alan was practically crying from the stimulation. Uncle Dean's sexual service had worked its purpose, driving Alan to his peak. His teen jizz spilled out of his hard cock, shooting thick ropes of boy-cum all over his uncle's chest and stomach. Shot after shot rocketed from the slit at the center of Alan's purple, engorged cock-knob.
This ramped things up for Dean, who clamped his hands on Alan's hips, holding the boy down, keeping Alan's buns pressed tightly to his uncle's thighs. The thick piece of manhood spasmed in the grip of Alan's asshole.
Dean pulled his nephew to him, moaning into Alan's mouth as he spilled his man-goo deep into the boy's hole. The accumulated juices leaked out of the teenager's ass, drooling along Dean's shaft down into his pubes and over his hairy balls, onto the upholstery.
Their bodies jerked repeatedly with their mutual orgasms. Alan's cock spurted over and over, while Dean unloaded inside his nephew's asshole.
Their breath was heavy as the two exhausted men recovered from their ordeal. Alan's legs were weak, but with a last ounce of energy, he un-impaled himself, giving a grunt as Uncle Dean's fuck-stick slipped from his abused hole. A river of cum spilled out, coating Dean's still-hard rod. Alan flipped back onto his own seat. They both sat for a moment, panting, sweating.
Then, a window at the house lit up.
"Damnit, that'll be your aunt," Dean said. "Get dressed."
Alan scurried to pull his clothes back onto his sweaty, overheated body, and Uncle Dean started citing off a list of places and reasons for going there. They needed a cover story, because neither one would dare to share their alien abduction orgy experience with the woman.
As they brainstormed explanations for their late arrival, each of them, secretly in the back of his mind, began conjuring scenarios where they could meet like this again. Alan had never felt anything sexual for any other guy before. But now he wanted it. He wanted sex with men. He wanted his uncle.
Perhaps Uncle Dean might visit Alan's bedroom in the middle of the knight to feed his fat cock into the teenager's asshole right in his own bed. Or maybe they could rendezvous in the basement, far from Alan's aunt, and Alan could wrap his lips around Uncle Dean's meat pole next to the water heater.
And of course, there was always the car. They could drive anywhere and tear their clothes off and get horny with each other. He imagined Uncle Dean standing naked in the thigh-deep water of the old creek, holding onto Alan, who had his legs wrapped around the man's waist as he got fucked.
Uncle Dean, likewise, experienced this new potential and he was more than happy to help fulfill his nephew's needs. After the show the aliens had put on, Dean was sure Alan's little hole was pliable enough to accommodate Dean and another friend all at once. After they had explained their absence to the old lady and everything was settled, Dean committed to finding a new partner to help him handle his horny teen nephew.
Meanwhile, high above the house, one of the countless tiny lights in the night sky wizzed away, out of sight, leaving behind a confused, yet satisfied, nephew and uncle.