tfwiki:

A fine question to ask for National Coming Out Day, well done!

IDW’s approach to Transformers – which is to say that female Transformers have not existed on Cybertron in statistically significant quantity for millions of years – means that, in fact, the whole planet is a “homonormative” society where male bots loving male bots is the standard. In addition to the breakout case of Chromedome and Rewind, other notable ‘bots have included Needlenose and Horri-Bull:

Brainstorm, who had an unrequited crush on Quark:

And Blast Off, revealed to harbour love for his commander Onslaught, who was recently mentally manipulated into returning that affection:

The introduction of Cybertron’s colony worlds, on which female Transformers widely exist, hasn’t changed this any. Same-sex couples are common on colony worlds too, including Knock Out and Breakdown, canonizing the popular fan interpretation of the Transformers Prime characters’ relationship:

And the colonies have opened up the door to female/female couples too, like Greenlight and Lancer:

and Jumpstream and Dustup:

Special mention has to Lug and Anode, a pair of assigned-male-at-birth Transformers from Cybertron who ventured out into the universe and gained a new understanding of gender through their encounters with other alien species. Deciding that “female” fit them better, they transitioned to become the first transgender lesbian Transformers couple.

Now, this isn’t a complete list – there are other minor characters, some from further back in Transformers history who are…. llllllets say, less-enlightened depictions of LGBTQ individuals. We once made a post about that history, and you can also check our Transformer romance article for a more complete list of relationships.