Bumblebee X Charlie soulmate knit figure plot bunny

Okay I have seen plenty of soulmate fanfics over the years with all sorts of indicators showing who is who. This one is written for the Bumblebee Movie (2018) but I encourage people to share the soulmate concept (highlighted in bold) for other people to use (I don't really understand how.)

For the record the basic concept is inspired, of all thing, by a Dog's Trust advert

Plot summary:

At some point in every pregnancy a mother will be possessed by something from a higher plane for a single night. During that night they will knit a little figure. This figure represents their child's soulmate on the day they first encounter each other. Sometimes this is easy for soulmates to figure out who their figure represents, while others, particularly those who meet in uniform, can find it a lot harder to figure out. On Cybertron similar figures, made of semi-liquid metal. The eyes figures will glow when held by their owner's soulmate for the first time.

So, what does it mean when Charlie Watson's mother awoke after her night, to find not a little knitted figure, but a little knitted yellow VW Beetle?

Pairing: Obviously Bumblebee/Charlie Watson (I'm not usually a fan of Transformer/Human pairings but something about the interactions I've seen endear the idea of their pairing to me.)

Rules:

Please not overly angsty

Ignore TF07 – TLK and the implications that either Bee and Charlie are ultimately separated, or worse.

Ideally include humour as well as fluff.

If you feel like it adds in proper transformers action but it's not a requirement.

Charlie can become a Transformer. Bumblebee cannot become Human.

Bumblebee can become a headmaster with pretender mode.