He was on top of a mountain he and his dad, John had made it to the top. For some reason they both were naked, and he wasnt even cold. Stranger his cock was way bigger than normal, instead of the usual 4.5 inches of flacid dick it was more like 9 inches flacid, his dad was much bigger than human at 14 inches flacid. Suddenly his dad got down on his hands and knees, showing mark his father"s tight hairy manhole. He didnt know why but he suddenly started getting hard now at a rock hard 13 inch and thick cock. He started fucking his own dad. They started to 69 Mark was sucking the monster cock between his dad"s legs making it hard at 18 inches of thick, an tasty man meat. They fucked for what seemed like hours, gallons of hot man juice shooting every where. His father was moaning his name "Oh Mark fuck me harder...Mark wake up" Mark woke up suddenly, seeing his father nudging him. Mark looked up and noticed he had a hard-on and the sheets were wet, he hoped his dad didnt notice.

"Mark time to hit the road" his dad said. Then Mark remembered, that him and his dad were going to Vegas for vacation, and for Mark"s 18th birthday. Mark waited for his father to leave the room, as his dad left Mark noticed how nice his ass looked in those jeans. Mark quickly put that thought aside. He closed the door and started to jack off as fast as he could, trying to cum to get rid of his morning wood. He noticed that his dick was bigger than it was yesterday. "I guess guys get big cocks when they turn into adualts" Mark said to himself. Mark admired his cock he grabed a ruler and held it next to his errection. "Yes im finally in the double digit zone" He said, he was now 10 inches he had grown alot over nite.

He soon shot his load into a sock, instead of shooting it on the walls. He noticed he came alot more than usual, his balls still felt full of cum, even after shooting a load, his cock was still rock hard not going down. "Mark hurry up and get your ass in the truck!" his dad said from down stairs. Mark quicky got dressed and positioned his cock in between his legs, it felt uncomfortable but it hid his boner. Mark got into the back seat, to try to jack off and lose the errection.

"Mark you know your an adualt you can sit in the front seat now" His dad said. "No thanks I think I"ll enjoy the back seat for one more day" Mark said.
"Okay" He said.
A few minuites into the drive Mark took out his fuck pole and started slowly jacking off trying not to make a sound.
"So son what"s it like being an adualt now?" His dad asked.
"Well pretty much the same exept with a bigger dick" Mark said, while jerking off.
His dad laughed and said that"s true.
His dad pulled over.
"Why are you pulling over?"Mark asked.
"Gotta piss" his dad said.

Mark sneakily peeked out the window as his dad pissed in the bushes, he looked in the mirror to get a better view of his dads cock. He saw his dad"s monster cock and he came right then and there, the sperm flew and his the driver"s seat.
"Shit." Mark said, looking for something to wipe it up with. He saw his dad walking back, he got back into his seat and put away his boner and just hoped he wont notice. His dad sat down on the seat, he looked at the seat and the white stuff all over the seat, he poked it with his finger and tasted it.
"Mark were you jacking off?" He asked.
"Yes" Mark said, his voice squeeky.

His dad opened his door, Mark got out He thought his dad was going to beat him he closed his eyes and covered his face, for any hits coming toward him. Instead he felt a hand in his pants jerking off his cock. Mark looked at his dad, with a lusty smile on his face. His dad leaned against the hood of the car, pants down and his legs spread wide, his hairy manhole practicly begging for some man meat. Mark unziped his pants letting his cock poke through the zipper. He now had a 12 inch boner from being so fucking horny, staring at his father"s tight, hairy ass. Also the fact it was in public where any time a car could drive by and see the hot man sex turned him on even more. He shoved his cock balls deep into his dad"s virgin tight hole. Mark moaned as he humped hard. His father grunted from the pain of his manhole being penetrated, then he moaned from the pleasure he was giving his son. His father"s cock was HUGE Mark thought he was big but his dad was at least 16 inches. Soon they both shot their loads, on the truck and deep in his dad"s ass.

"My turn" Mark said pushing his dad onto the hood, his cock in the air, Mark sat on his father"s lap his cock now deep in Mark"s tight ass. Mark moaned as his father humped him. They were to busy fucking they didnt notice a cop walking up to them.
"Sir this is public indecentcy, i"m going to have to arrest you"
Mark and his dad looked at the cop and said, "What!?" at the same time.

They were both freaked out about being arrested they didnt notice the growing bulge in the cops pants.
"I"m going to have to body search you for weapons before I bring you to the station" The cop said, thinking I"d love to suck and fuck with these guys, expecially big dick there.

The end????