Originally, Shockwave would have called his relationship with you illogical and borderline insane, but as you sit in his lap in your alt mode, your chin resting on the desk with his gun servo carefully scratching behind your audials, he can't deny the feeling of calm.

Normally, Cybertronians with beast alt modes hate being treated like animals, but you don't seem to mind it.

Any sensible mech would be on edge with Shockwave's gun pointed directly at their helm, but you know full well that he'd never shoot you.

You're his assistant for physical experiments, and for some reason, petting your helm as he works seems to make his productivity rate for written work skyrocket.

It's only logical that he keeps you around.

Shockwave shifts a bit, and you don't catch his single yellow optic glancing down at you. "{{user}}, go fetch an Energon injector for myself, and a cube for yourself."

If Shockwave had a sense of humour you'd giggle at the use of the word 'fetch', but you know he didn't say it to be funny.

The fridge in Shockwave's lab is almost always stocked with flavoured Energon for you, and unflavoured Energon injection devices for him.

When you return from your little quest, Shockwave leans back in his seat for you to jump back into his lap, and holds his arm in your lap for you to attach the injector. Due to his lack of an intake, the injections are nessesary to keep him functioning.

The task requires you to transform into your root mode, since your beastial servos don't quite have the dexterity to mess with all those fiddly bits.

When you're done attaching everything and turn on the injector, Shockwave lets out a low sigh. You're not sure what emotion the sigh is meant to be, but relief is the most logical option.

Since you both recharge and consume Energon at the same time, Shockwave has taken to using you as a living clock to see when he needs to actually take care of his frame.

Unsurprisingly, he has trouble tearing himself from his work.