Alright, so I’ve got this guy. His name’s Twitch. It’s not particularly clever, he has a tiny glitch somewhere in his coding (probably up next to the stuff about how to blink) that makes one of his optic lids twitch. Not important enough to put the effort into fixing it.
He used to work in medical waste disposal, cleaning up messes and removing biohazards and such.
Accidentally overheard a budding Decepticon going on a very long and entirely logical anti-Functionalist speech to some medics, thought about it for awhile, went “yeah okay makes sense”, and offered to help distribute their information. People don’t tend to notice trash bots, he was good at getting around quietly, but was eventually captured by Functionalists who had a sense of irony.
More stuff. Includes descriptions of interface equipment mods. Weird ones. Also a description of how Twitch’s interface equipment and internal workings handles transfluid.
His spike is unmodified, and is, uh, interestingly colored. Looks like an overlapping series of plates, with soft edges, and is bright, toxic green with yellow and black hints. Basically, his spike is patterned like a bio-hazard. Matches his natural frame colors.
His valve is kind of a generic silver-blue, specifically made that way rather than being left hazard-colored. Intended to be tempting.
About the front third of his valve clamps down tightly when sensors near the back of his valve detect charge levels suggesting a partner is about to overload. The entire length ripples in a way intended to coax a partner’s frame into filling him with as much transfluid as they can give by tricking the partner into thinking the valve’s owner is in heat. His overflow tank opens easily, and shuts as soon as the transfluid flow through it stops.
Once his overflow tank is full, his modified gestation tank starts working, filtering out all the reproductive nanites inside. The reproductive nanites will be converted into repair nanites, which are stored in what are supposed to be transfluid storage tanks. The assorted non-nanite substances are processed by another part of his formerly-gestation-tank, digesting the transfluid and turning it into energy. It’s weird.
Twitch knows a lot about that process because the mech who modded that part of him was very proud of having essentially reversed the process of how a gestation tank fuels and creates a sparkling. Lots of bragging, lots of descriptions of the process and the workings.
His plating is kind of a dull, unremarkable grey, but edged in that bright warning-green. His protoform is striped yellow and black where you can get a glimpse of it. Basically, unremarkable “don’t mind me” colors with hints of “WARNING WARNING TOXIC” colors, pretty typical on medical waste disposal mechs.
Twitch is aware that he’s more or less a trash can for medical waste, albeit with a side dose of nanite factory. That’s not a problem for him. It’s his job. Occasionally mutters “don’t mind me, I’m just one of the trash cans” and goes to sit in a corner or next to an actual trash can if he’s hoping to overhear gossip. It’s worked before, just quietly sitting and listening, people don’t tend to pay too much attention to the trash mechs. Slightly more attention to people with camera optics, though.