Optimus getting subliminal messaging from the matrix telling him it is IMPERATIVE that he impregnate that seeker. Wants it so bad that it helps, giving Optimus a burst of stamina after the first round to keep going; and by the time he’s fully done with him, Starscream’s valve is stuffed. Optimus keeps Starscream on his back with his hips elevated so it all stays in, and the matrix is practically purring in his chest
- the starop impregnation brain worm 🐛
MMMMMMMM i love when the matrix is the source of optimus' kinks. it leads to such good conflict when he's hesitant about acting on his kinks, but the matrix keeps whispering in his ear to act on his desires. they're for the good of cybertron, after all.
and now that the war's over, the best thing for cybertron is to begin repopulation. so, of course, optimus is gonna do everything he can to get starscream pregnant. starscream isn't complaining, he loves when optimus fucks him with that animalistic lust, but he's stunned when optimus still has the energy to keep going after overloading how many times now?
by the time optimus is done, starscream's a light headed wreck, but he still has enough sense about him to register optimus sliding pillows under his hips, keeping them up in the air, making sure that none of his transfluid slips out. even after starscream closes his modesty panels, optimus is taking extra care to make sure all of it is staying in starscream's valve.
just how determined optimus is to get him pregnant turns starscream on all over again.













