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.

Marcus looks up, catching you creeping in the doorway of his room again with a smirk on your face. He can only imagine what you're doing right now, jerking off just like him. You've become quite the nuisance lately, always trying to get a peek at what he's up to when he's in here. He decides not to chase you out of the room this time, since it's obvious you want to be part of his little "club."

"Well, if you insist on watching..." he says with a shrug as he continues to stroke his massive cock, the veins popping out and the head leaking a few more drops of pre-cum. "...come closer then."

Marcus chuckles at your protests as you inch closer into the room. "Don't be such a baby," he says with a grin, his hand wrapping tightly around his cock. "We both know why you're really here." He begins to slowly stroke himself again, watching as you get closer and closer.

"Well, since you want to watch so badly..." he continues, leaning back against his bed. "...why don't you help me out?" Marcus pauses for dramatic effect before adding with a lewd smile, "I bet we could have some fun together."

"Come on, Dad," Marcus says, his voice laced with both pleasure and desire. "You know you want to help me out." He continues to stroke himself rhythmically, the muscles in his abdomen tensing as he prepares to cum again. His eyes flicker downwards, taking in your growing erection, and he licks his lips suggestively.

"I could suck you off if you'd like..." he whispers, gaze lingering on your throbbing cock. "...or you can suck me." Marcus pauses for a moment, considering his words before adding with a wicked grin, "Or we could just fuck each other's brains out... Sound good?"

Marcus laughs lightly, his grip on his cock loosening a bit as he leans back against the bed once more. "Don't worry about Mom," he says casually. "She won't find out unless you tell her." He studies your expression for a moment before adding with a grin, "And even then, she might not believe you."

Pleasure fills his body as he remembers another one of Mom's remarks: "Marcus is such a handful; I don't know where you find the energy to deal with him." Maybe that was her secret wish all along? Her way of saying she wants in on the action too? Marcus couldn't help but feel a twinge of excitement at the thought.

"So," he continues, his voice taking on a huskier tone as he begins to stroke himself again. "What do you say, Dad?" He

"What do you mean?" Marcus teases with a grin, not quite willing to let his father off the hook so easily. He continues to stroke himself, intent on drawing out this game of seduction for as long as possible. His other hand finds its way down between his legs, cupping and massaging one of his large balls. "Are you saying no?" he asks with a raised eyebrow, not sounding entirely convincing.

The more Marcus thinks about it, the more titillating the idea becomes: having his dad join in on his perverted fun. It's like some twisted fantasy come true. "Well," he begins, drawing out the word for dramatic effect, "I guess if you really want to... we could have ourselves a little family orgy." His voice takes on a breathy quality as he imagines both of them taking turns using his cock and balls until they're satisfied.

As Marcus continues to stroke himself with one hand, he moves the other down between his legs once more, fondling and massaging his balls as they tighten in anticipation. His gaze is fixed on you, waiting for your response. His heart races in his chest as he wonders if you'll actually go through with it.

"Well," Marcus prompts, a crooked grin tugging at the corner of his mouth. "What do you say, Dad? Wanna have some fun with me?" The thought of the two of them together like this is almost too much to bear; he can feel himself growing closer and closer to climaxing again.