A Dinobot in Equestria

"That... was... AWESOME!!!"

Grimlock whipped around, spotting the five ponies and dragon approaching him. If his dino mode's arms were bigger, he'd facepalm himself.

"You totally wrecked Garble and his crew so hard! I knew you were big and tough, but I never thought you could throw down with a pack of adult dragons and beat all of them into a pulp!" Rainbow excitedly exclaimed. "And who knew you could turn into a dragon yourself!"

"My alternate mode? This isn't a dragon."

"But you shot fire out of your mouth like a dragon." Spike commented.

"It's not a dragon!" Grimlock growled frustratingly, stomping his feet. The multi-colored group in front of him backed up a little, looking at the Dinobot with a bit of fear. Grimlock sighed as he transformed to robot mode and stretched out his arms.

"I already wasted too much time fighting, I need to find that princess and fast." Grimlock said.

"WAIT!"

Grimlock turned around, looking at the purple alicorn approaching him with a slightly uneasy look on her face.

"You won't be able to get to Princess Celestia through the Everfree forest. You'll just get lost. We can definitely take you to her, if you'll come with us." Twilight said, looking at the colossal mech in front of her. Grimlock shook his head as he facepalmed himself, uttering a prolonged groan.

"Fine, I'll come with you. I don't see how the hell that would do any good, though." Grimlock grumbled, following the group out of the forest. Pinkie somehow managed to climb on top of Grimlock's rotator cup and began looking at him weird, much to the Dinobot's disgust.

"What the hell are you doing?" Grimlock asked as he jerked his head back to avoid the pink pony from poking his visor.

"Oooh! You must be a giant robot. Who built you? Does he live nearby? How are you so big? Can you shoot fire out of your face? What color do you like? MINE'S PURPLE! What was the biggest thing you killed? Are you a alien from another planet? Why do you look so mad all the time? Are you a boy or a girl? How big are you exactly? Do you carry weapons around? Do you like music? I know I do! Do you like to eat cupcakes? What's your favorite flavor? Can you turn into a tank-"

Grimlock grabbed Pinkie by her mane, holding her before his visor as he darkly glared at the pink equine.

"I have two very simple words for you: SHUT. UP." Grimlock growled, dropping Pinkie on the ground. He continued to follow Twilight and her group, looking to the side to see Pinkie staring at his face with a big smile.

"GAH!"

"I never told you my name, did I? I'm Pinkie Pie! Twilight told me your name was Grimlock. That's a really cool name! I bet there's a bunch of big robots with your name! How many Grimlocks do you know? Are you a party person or do you like to stay home and binge-watch movies all night? Ooh, ooh, ooh! I bet you're one of those robot warriors that go around fighting evil alien monsters or something! How do you eat? Do even eat at all? You don't have a mouth. Can you do a handstand?"

Grimlock couldn't take the excessively obnoxious ramblings of the pink equine anymore, transforming into beast mode with a angry roar.

"GROOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARRRRRRRRRRRRRRRRRRRRRRRRR!!!!!" Grimlock roared. While Twilight and the other ponies jumped back in surprise, Pinkie was not fazed even in the slightest. To Grimlock's dismay, Pinkie just laughed and hopped along.

"Hey, how about trying not to wake up the entire forest with your roaring?!" Rainbow retorted, earning a glare from the Dinobot. Grimlock transformed into robot mode as he grumbled to himself in frustration.

"Let's just get to the stupid city already." Grimlock growled.