That twiggy fucker absolutely has a voice kink, especially for Optimus. He loves phone sex (comm sex?), and it's his favorite thing to do when Optimus is away. Optimus loves fucking him in front of a mirror, watching him gasp and moan and beg for more while whispering into his audial about how beautiful he looks, how he wishes he could chain Starscream to his birth and keep him split open on his spike for days just to see his pretty face. He means every word of it, but just saying it out loud is enough to have Starscream squirming and nearly overloading on the spot.
oh starscream would absolutely have a voice kink. (totally not me projecting onto him again.) i can see him comming optimus while he's alone on the harbinger, fucking himself with a toy, whining about how it's not as big as optimus, and optimus purrs into his audial about how beautiful he sounds, how he can't wait to see him again so he can really make him scream.
and yessss! MIRROR SEX! MIRROR SEX! optimus making starscream watch as his spike slides in and out of his puffy valve, practically growling all of his filthiest fantasies into starscream's audial. it's too much for starscream and nearly makes him overload from the sight of his reflection alone













