This is wonderful!!! I've read (and been irritated on behalf of my gender) in so many fics the explanation of why the Cybertronians choose male gender pronouns in relating to the humans (so as not to put themselves at any disadvantage), to have them here, as femmes and clearly being identified as female, opens up so much. As if someone wouldn't respect and be in awe of Optimus Prime, no matter what gender pronoun was used for her.

And I just love the image of Carly hanging out in the shower with the other "girls" (as I also love the image of Prowl having to discipline her lover).

I must admit I'd love to see a long fic from you based on this trope :)