"AUTOBOTS! there is no time to loose, We have detected a very power energon source underneath the city, we have reason to believe it is the ancient Fortress Maximus! We must get to it before the decepticons do" Optimus said from the command base.
"We're on it Optimus" Bumblebee said
"We're on the roll, ETA about 15 minutes" Jazz said
"Understood I'll be there shortly" Optimus said before turning to his old friend and medic Ratchet. "Open a ground bridge, and if any of the humans are there open one so I can send them back" he ordered
"And their teacher?" Ratchet asked flipping a switch that opened a green vortex
"Let him stay" Optimus said as he transformed and drove through the vortex
Soon at the sight of a giant sinkhole a Yellow Muscle car, a white sports car, a red exotic, a blue motorcycle and a green four wheel drive, and out of each vehicle came a pair of teenagers, except for the bike rider who was solo
"SO this is the site of some big wig Autobot huh?" Rio asked removing her helmet while her blue bike transformed into the Autobot Arcee.
"Looks like" Nagisa said as he and Kaede stepped away from the yellow Muscle car who became Bumblebee
"So what are we suppose to do?" Rinka asked stepping out of the red exotic Sideswipe with Chiba
"Finally, who knew a human femme could hold their intake for so long, especially swapping fluids with a human mech" Sideswipe said making Bumblebee and Arcee go wided eye while the humans looked confused
"He was basically saying who knew we could make out for ages" Nagisa translated
"Oh" they all said
"That was fun" the energetic voice of Kurahashi said jumping out while her partner Okajima calmly exited out of the green four wheel drive who became Bulkhead
"Isn't it irony that the nature lover was riding in the four wheel drive?" Kaede said
"Not really 4WD are used by a lot of people in that particular area, they are needed to cross the rough terrain of some environments" Nagisa said
"I mean that the nature lover is getting out of a fuel guzzler" Kaede stated
"HEY!" Bulkhead said
"Easy guys" Isogai said before opening the door for Kataoka and helping her out of the white car who turned into the Autobot's second in command Jazz!
"So this is one funky sinkhole" Jazz said
"I'm reading a heavy energon signature down there, one that could only belong to Fortress Maximus" Bulkhead said
"So what are we waiting for?" Sideswipe said
"Optimus" Arcee said
"Hey guys, who ordered the construction vehicles?" Kataoka asked as a bulldozer, excavator, cement mixer, crane, dump truck and a front end loader
"What?" Jazz asked
"And why are they green and purple?" Kurahashi asked
"That's not any construction equipment: Those are the CONSTRUCTICONS!" Bumblebee said
SCATTER!" Jazz shouted as each Autobot took out their weapon
"Ooh what are you going to do build so to death?" Nakamura taunted
"She jinxed us" Sideswipe said
"Sideswipe" Bumblebee said
"SHE SERIOUSLY JUST JINXED US!" Sideswipe shouted as the constructicons stopped firing
"COMBINE!" they shouted
"wait what?" Nagisa asked as the crane and dump track became a massive torso, the excavator and bulldozer turned into massive arms and finishing it off was the cement mixer and front end loader turning into giant legs. One thy all connected a giant head arose.
"I AM DEVASTATOR!" the giant transformer said
"And I am going to need to change my skirt now" Nakamura said making everyone step away. While that happened Nagisa dialled the Autobot base.
"Ratchet, bridge now" Nagisa said as a green vortex opened up behidn the humans "GO NOW!" the bluenette said as they all raced through the green vortex as Optimus waited for them to step out
"NOW AUTOBOTS!" he said as the all opened fire.
Once they were back in the base the humans collapsed.
"Rio" Nagisa said
"Yeah?" she asked
"You can change now" Nagisa panted
"Thanks" she said getting up
"Wow, only one of you had that reaction, interesting" Ratchet said
"So what should we do?" Isogai asked as they watched the fight.
"Hold up, there!" Kataoka said pointing to the screen
"What?" Isogai asked
"We can bridge in behind the fight and then find that fortress thingy" Kataoka said
"That is a brilliant idea" Isogai said
"So, what's going to stop them from crushing us?" Nakamura said walking back in while adjusting her clean white t-shirt she was now wearing with a pair of knee length black bike shorts.
"Simple, put down deep in the sinkhole so they don't notice us" Kaede said
"Very well, but know that the minute I think you're in danger I'll pull you out okay?" Ratchet asked
"Got it Docbot" Isogai said as he lead the group into the vortex travelling behind Devastator
"Hey did you Stub your toe big guy?" Bulkhead asked smashing his morning start weapon into the right foot of the giant.
"Jazz, Bumblebee, Arcee focus attacks on his torso, Sideswipe help Bulkhead bring that leg down" Optimus ordered using a heavy blaster to distract the giant Decepticon from Optimus who was lining up a head shot.
"Over here ugly" Sideswipe said firing off a round of flames from his flamethrower.
"Eat this" Bumblebee said shooting the torso
"Incoming" Jazz said lobbing a grenade.
"I can still hear the fighting" Rio said from the cavern as gunfire, shouts and explosions could be heard.
"No sign of Devastator yet, so that's good" Isogai said
"OVER HERE!" Okajima said "I think I can see a door" he shouted as the group appeared and did indeed see a door.
"I suggest we move through it" Kaede said each member ran through. When Nagisa was about to leave when Devastator fell down face first
"Crap" he said as a massive purple hand went to grab him
"NO!" Optimus shouted firing his main weapon to persuade Devastator to come after him. "RUN NAGISA!"
"Got it" Nagisa said running off
"Optimus" Bumblebee said firing off a few shots of hsi disruptor. "Are the kids alright?"
"Yes, they have gone on ahead of us" Optimus said
"That was not something I want to do again" Nagisa panted out. Most of them were gathering their breath for a few moments when Okajima spoke
"Hey guys! I think we found it" he said
"What do you mean?" Kaede asked
"Fortress Maximus" Isogai said seeing a large blue, white and red structure. "Its huge"
"Do not want to be the one who pisses this guy off" Nagisa said as the roof over Fortress Maximus breaks apart
"Er guys what's that?" Kurahashi asked as a human sized robot appeared
"Transformation in progress, Cerebros online" the robot said transforming into a head before joining onto the body of a bigger robt.
"No way" they all gasped as the new robot levitated in the air while the massive fortress rose with the lower part becoming the legs, the two rear runways folding down into arms and the one called Cerebros joining onto the massive body to form the head.
"Well that's a big transformer" Rio said
"That's Fortress Maximus, he's huge!" Arcee gasped
"He's so big he dwarfs Devastator." Bumblebee said
"If Devastator is a dwarf then we must be ants to this guy" Bulkhead said
"Threat Detected" Maximus said
"I hope he doesn't mean us!" Jazz said
"Decepticon Combiner" the giant transformer said before punching said combiner "Eliminated"
"Welp, that's done" Bulkhead said as the fortress transformed back into Fortress Mode. "And he's a sleep"
"Good job today both Autobots" Optimus started before lookinga t the teenagers "And humans, we have now safely secured both Cerebros and Fortress Maximus, now we have a new ally in the fight for Earth" Optimus concluded making all those gathered cheer.
"But what about when Megajerk comes back" Sideswipe said
"Then we will be ready for him" Optimus said
"Well time ot hit the hay" Nakamura said as she went over to the nearby human bunks to sleep.
"I agree with her" Nagisa said walking away with his girlfriend
"No risky business!" Ratchet cried out
"Wouldn't dream of it doc" Nagisa laughed
Hey guys Grizz here again, now an explanation to this fic: a reader dub Captain Aron wanted a Transformers Headmaster crossover and the only headmaster I had knowledge of was Fortress Maximus from the Robots in Disguise anime that aired in the early 2000s. Also since I've been playing the new G1 love letter video game Transformers Devastation I added in Sideswipe and Devastator into this fic. And once again I had only a limited time so the fight scene was kinda lacklustre.
So until next time I'll catch you on the flipside