Jake decides to take a big step. He opts for a full body swap with his dad at night while he is sleeping.
He wakes up in his parents' bed. He immediately starts rubbing his dad's hands all over his hairy body, enjoying how different it feels to his. The palms of his hands were so calloused and rough, he immediately starts rubbing the short thick cock with a hand, while feeling his beer belly with the other. He was also wiggling his feet, feeling the hair in-between his new toes and the sheets tickling his rough meaty soles. It was heaven, he felt so good that he even completely forgot that his mom was standing right next to him. He pumped his dad's cock harder and harder, feeling precum leaking, until his mom woke up from the noise of his manly grunts of pleasure.
She immediately got on top of him, riding his dick. Jake couldn't believe what was happening, he was fucking his own mom in his dad's body. He was gay, so he wasn't attracted to her, yet he was more aroused than ever. Not at the thought of his mom's body, but at the sight of Dave's (his dad) big cock going in and out of her vagina. The thought of someone enjoying Dave's perfect body. He lifts Dave's huge long and hairy feet to his mom's face, and she starts licking and sucking his soles and toes. Jake wiggles them, picturing himself as his mom, enjoying the stinky sweaty feet of his dad. He cums inside her. She rubs the cum on her fingers and then over his soles which she starts licking again, getting the cum mixed in with the hair on his feet.
She finally cums too and lays back in bed, while Roy goes towards the bathroom to wash Dave's body (and have some more solo fun with his dad's feet). Walking on the hallway, he has a huge surprise. His old body is now standing in front of him, with a panicked face.
"Is that you dad??"
"Jake!? What happened? Why did we switch bodies?"
"I don't know, I just woke up like this!" Jake lies
He and his dad go into his bedroom. Before he can say more, he sees his dad, in his body, staring at the cum-covered veiny tops of his feet.
"I'm sorry son, I can't hold it!!!"
His dad immediately lets out Jack's huge boner and starts jerking off. Jack didn't know how to react, but eventually decided to just go with the flow. He sat his dad's body on his bed, feet pointing at his old body, toes wiggling like an invitation.
"Is it okay if I touch them?"
"They're your feet dad, don't worry"
His dad immediately starts feeling Jake's hands along his calloused soles, and before long, starts rubbing Jake's leaking cock on them. Jake cups his dad's feet around his old dick, and starts pumping it.
"I can't believe I'm doing this, this is incest son! I'm so ashamed"
"Hey, this is your body, it is masturbation at best, don't think too hard on it" Jake said to calm him down.
"Hey dad, do you mind returning the favor?"
Without objecting, his dad brings his body on the bed and stretches Jake's legs so his soles reach his old pulsing cock.
Jake had never thought about his own body like this before, but it was so hot having his soft 12 year old soles rubbing on his dad's 49 year old dick. They were just a younger version of his dad's feet, he thought. They both came moments later, covering each other's feet in warm sticky cum.
"That was amazing" says Dave, with his dick still in-between his old manly feet.
They stay there cuddling for a few minutes, Jake lying to him about how he has no idea what happened or how to return to their bodies.
"Okay, it seems like we'll have to stay like this for now, until we can figure something out" says Dave.
"I never knew you were gay Jake, and that you had a thing for my.. feet"
"Yeah.. I suppose there's no point denying that now"
"Don't worry about it.. I actually really enjoyed it, and I wouldn't mind taking advantage of this situation a bit more until we can find a way to swap back"
"I can't believe these small 12 year old soles got you off though!"
Dave starts wiggling Jake's feet on top of his old cock, still feeling the warm cum flowing down from it"
"Hehe, yeah, I can't believe it either."
Jake pulls one of his old feet to his dad's mouth, giving it a few kisses, both of them giggling.
Dave gets off from the bed and starts walking in Jack's body. "I think I can get used to this, even though my cock is nothing compared to what it used to be".
Jake goes back to his parents' bedroom, to sleep for the night. They spend up a few weeks in each other's bodies. They'd have all sorts of fun when Jake's mom wasn't home, roleplaying, jerking off on the floor or in the window, giving each other footjobs in the bath and shower, exploring and enjoying their bodies. Jake was now a hairy bear of a dad, with huge hairy feet and thick hands and cock. Dave was a 12 year old kid with almost no hair, yet he was always horny and enthusiastic to rub his small cock on his 'dad's' rough long soles. One night, Jake even noticed him standing in the doorway and jerking off while he and his mom had sex. He stretched his feet towards the half-open door and wiggled his toes, while smiling. His dad came in the doorway at the same time he came inside his mom. He took the first chance he got to get out, pin his 'son' down, hold his feet in his hands and violently jerking off on them.
Soon, Dave's 50th birthday arrived. Jake didn't even realize that, until that morning his 'son' came on his feet and yelled "Happy birthday Dad!!!". From that moment, he was Dave, married to his mom, father of his son, Jack. They never really talked about their roles again, they both liked who they are now better and wanted to stay that way, there was no point in trying to figure out how they got there, or how to go back. Dave was just a proud daddy bear enjoying his own mature body and his son's horny teen body.
At some point, Dave divorced his wife. He wanted to dedicate all of his time to his son. Outside they'd go as a couple of friend or a father and his son, while inside they'd commit non-stop taboo acts. Dave insisted that his son should get a boyfriend, so he doesn't stay tied to his daddy all of his life. Jake did, a few times, but all of his boyfriends would get freaked out by Jake edging and holding his cum, running to his dad's sweaty soles to release his load. There's just nothing that turns him on more.
"I can't wait to grow up and have my feet look like yours" he'd keep saying, while having his middle-aged dad lick off his cum off his teen soft and smooth soles.