Part 3

As soon as he got off shift, First Aid went over to Rodimus' office to explain the situation. Surprisingly, the young Prime was more than happy for First Aid to construct the body shell at the City, and even offered to give the medic more time off so that he could work on it.

When he left the office, Fireflight was waiting outside for him. "Hey First Aid, did you order more supplies?" The Arialbot asked.
"No, why?" The medic asked, confused.
"Well, there's a whole pile of crates in the Repair Bay with your ID number on them." Fireflight explained.
"What?"

First Aid jogged down to the 'Bay, and sure enough, about half a dozen large boxes were neatly stacked in one corner of the main ward. First Aid prised off the lid of the closest one and found a data pad atop the packing material.

'This should be enough. Need anything else, just contact us. S&S'

Several years earlier…

"Ok, this should do it." Ratchet said. He tapped a final command into the design slate and set it on the desk. The screen glowed for a moment, then projected a small hologram of what the finished Moonlight would look like.

The twins leaned in to get a good look at the rotating image.

"Well?" Ratchet prompted.
"She's perfect!" Sideswipe exaulted, a huge grin plastered across his face and one arm wrapped around his smiling brother's shoulder. The two started jabbering at each other, pointing out this feature and that and repeatedly thanking the medic.

Ratchet felt a smile tug at his lips. When he had been a simple civilian medic, one of the greatest joys of his profession had been helping design and build body shells for transformers who wanted their own creation. Seeing that exuberant happiness bubbling up in the twins, especially in the more withdrawn and less expressive Sunstreaker, was one of those rare moments that made the medic feel that his job was worth it.

The door chime sounded. In a flurry of motion, the twins stuffed the 'slate under a data pad, subspaced the hi-grade and seated themselves, Sideswipe slouched in his chair with his long legs stretched out in front of him and Sunstreaker with one arm hooked over the back of the chair, a studied expression of sullen boredom on his sculpted face. Ratchet blinked. If he hadn't seen it himself he would have never guessed the twins capable of such a feat. Obviously, they'd done it before.

"Come in." he said, eyeing the twins slightly. Prowl entered, data pad in hand.

The black and white saw the twins, paused slightly as he assessed the situation, then dismissed the matter with a twitch of his door wings. If Ratchet wanted to lecture the twins in private, the whys and wherefores were not his business. "Pardon the interruption, but I need to see your latest requisition forms before I can submit the final list." He said.
"Right, should be here." Ratchet answered, shuffling through the stacks of data pads on his desk. "Ah, found it." He said, turning the requested item over to the 2IC.

Prowl nodded his thanks and turned to leave, when his sharp optics picked out the corner of the design slate. "Is this the new weapon Wheeljack was talking about?" he asked as he picked up the slate and activated it. Ratchet tried to make a grab for the slate, the twins almost lunged out of their seats, but it was too late. Prowl studied the hologram for a moment, one optic ridge raised. "Obviously not." He commented mildly, then looked at Ratchet. "Who is she?" he asked.
"Their sister." Ratchet finally said, waving one hand in the twin's direction.

"Sister." Prowl repeated, door wings twitching in surprise. He turned his gaze in the twins' direction. "Your sister."
"Yeah, so?" Sunstreaker replied, a hint of challenge in his voice.
"It's not like we'll use her for target practice or anything." Sideswipe added.

Prowl regarded them for a long minute. "Seeing as how the Ark barely survives the two of you, I shall have to instruct Hoist and Grapple to strengthen the walls so that they can withstand three." He said, the barest hint of a smile flickering across his face.

It took a moment for Prowl's words to sink in. "Really? You're gonna let us have her?" Sideswipe asked in disbelief.
Prowl shrugged. "Why should I not? If Ratchet approves of such an undertaking, then I will not oppose it. He is the CMO." He said, then returned the 'slate and walked out the door like nothing had happened.

Several years later…

First Aid stared at the plans, then at the tools and metal support struts that he had arranged on one of the berths in the smallest of the isolation wards, the young medic feeling his spark sink as he absorbed the enormity of the task before him. There was no way he could do this, no way at all.

"Hey First Aid, I see y' got th' delivery."

The CMO turned to see Jazz saunter into the small room. "Jazz, what are you doing here?" He asked.

"Had t' deliver a dispatch anyway, so I came t' check on how th' lil' lady was comin' along." Jazz replied with a grin. "Th' twins asked me t' look after the parts at th' embassy fer a bit, an' asked me t' have it all delivered here last night." He explained, then noticed the medic's worried expression. "What's with th' long face?" he asked.

First Aid groaned and sat down on the edge of the berth. "I can't do this Jazz." He confessed. "Sure, I can repair mechs, but I've never built anyone before. I'm not qualified for this." First Aid put the data pad down and sighed. "They should get someone else to build her."
Jazz sat down next to him. "Dude," he said, "Y' got approved an' trained by Ratchet. In th' twin's world, that's all th' credentials y' need. And don't sweat it, they'd have never trusted Moonlight t' ya if they didn't know she was safe with ya."