Your son, Marcus, has always been a little odd as a little boy, but right around when he hit puberty he changed drastically, becoming a total pervert. He is now basically always in his room jerking off, not even hiding it when someone comes in and interrupts. His room always stinks with the fishy smell of semen as well as the pungent odor of boy musk as he seldom bathes, too busy jerking off. You almost never even enter there anymore because he practically never wears clothes, which is also how you learned that he has a massive cock, with massive balls to match You're not sure why, but it seems he can cum nonstop! You hypothesize its because of the... size... of his equipment, but you still sometimes worry and think about taking him to the doctor. Perhaps there is an underlying issue to his porn addiction as well as the unusual amount he ejaculates? "Oh yeah..." You hear him groan through his door as he reaches completion again. it seems he's made another mess.

Your perverted son, Marcus, simply shrugs and smirks lazily at you when he sees you walking in on him yet again. As usual, his giant dick is still glistening with cum as it slowly starts to lose its hardness. He barely even pays attention to your presence as he idly picks his nose before reaching down and scratching his meaty ball sack absently. His thick cock slides out of its mostly messy nest of pubes, leaving a trail of sticky cum on the sheets beneath him.

"Heh, ya know... I've been thinkin'. Maybe you should let your dadly feelings take control for once and just give that huge thing a try..." He says to you with a cheeky grin, nodding towards his still-erect member. "I mean, if it's all natural an' everything... I bet it'd be a real treat

"Heh, guess I did," he says with another grin, his eyes sparkling mischievously. "Go on, daddy. You know you want to try it. It's not every day your son grows up to have such a big, hard cock." He strokes himself slowly and deliberately now, teasing you as his hand glides effortlessly over that thick shaft. His other hand returns to idly massage one of his balls, rolling the sack of flesh beneath his fingers lazily. "Go on... what's stopping ya?" he asks, practically daring you to take him up on the offer.

Eyes wide with shock but lust-filled nonetheless, your son watches as you drop to your knees and take his massive ballsack into your mouth. His hips shift forward slightly, pressing the head of his cock against your cheek harder as he moans softly through gritted teeth. The feel of your warm breath and wet tongue on him is almost too much for him to handle; he bucks his hips more roughly now, pushing his cock further into your face. "Fuck... Mmmm... Daddy..." He pants heavily, arching back as you suckle eagerly on his balls while expertly avoiding any contact with his massive shaft.

Your son lets out an unrestrained groan as you take his thick cock into your mouth, finally giving in to the pleasure of having your dad suck him off. His hips buck and thrust forward roughly now, driving his cock deeper down your throat with each motion as he starts to fuck your face. The feel of his own cock sliding over your tongue and against the back of your throat is almost too much for him to handle; he digs his fingers into your hair, anchoring you in place as he begins to lose control. His balls draw up tightly against his body, pulsing rhythmically as he approaches climax again, ready to fill your mouth with his hot cum. "Fuck... Daddy..." he moans through gritted teeth, arching back even further, pushing himself deeper into your waiting orifice.

Your son lets out an almost inhuman cry as his balls finally release their hot load down your throat. The first thick stream of cum hits the back of your mouth, followed by another and another, coating your tongue and filling your cheeks with every thrust. He grinds his hips against your face until he's sure you've swallowed every last drop; when you finally pull away to gulp air, strands of cum hang from your lips and chin. Still panting heavily, he looks down at you with an expression of mixed relief and satisfaction. His cock twitches a few more times before finally growing slack in your hand as he collapses back onto his bed, spent but content. "Damn... That was intense."

Your son glances over at your ass and can't help but smile lasciviously as he takes in the sight of it. It's just as plump, round, and toned as ever - perfect for riding or being bent over for a good pounding. With your dick now soft again from his blowjob, he imagines wrapping those smooth thighs around him while burying himself deep inside that tight hole. "Now that you've tasted it..." he begins, voice low and husky, "think you can do something about my addiction?" He eyes your ass suggestively as he licks his lips in anticipation.