This is an area where the way IDW has handled gender means we have to kinda move away from “human” ways of thinking about it as “gay” or “straight” or “bi” or “pan.” It’s not something that’s really been delved into, but the implication is that gender doesn’t seem to matter to Transformers when it comes to romance. What we think of as homoromantic attraction is the standard on Cybertron because it’s been a planet on which only “male” Transformers existed for something like eight million years. But the sudden introduction of “female” Transformers to the planet throught contact with the colonies, while it’s confused some ‘bots, hasn’t led to some mass reinterpretation of romance by a population that has, in human terms, been 100% gay for eight million years.
Here’s the best way I can illustrate this: in MTMTE #41, both Getaway and Skids (guys) were flirting with Firestar (a girl):
But then in the next issue, Skids briefly refers to Firestar as male, because he has grown up on a planet where there is only one gender, and isn’t used to even thinking of there being a distinction:
So, I mean, you could interpret this to say “Skids is bi,” in that “he’s attracted to both males and females,” but really that’s too “human” a way to look at it. It’s that he doesn’t even have to mentally or socially differentiate between Firestar being either “male” or “female” to flirt with her. He just saw “an attractive Transformer.” That’s all that actually mattered, because… like, “gender” has been a thing on Cybertron for a hot five minutes. It doesn’t “matter” like that.
Cybertronian Database 