[G1] Naughty Knotty

a/n: Another flash fic fill. This one is NSFW like whoa. Heed the warnings. This is some of the dirtiest, kinkiest smut I've ever written and I'm so damned proud of this. I hope you enjoy! Also, self-edited. All mistakes are mine. Enjooooooy!

Also, I blame the title on tumblr because I have no shame, I love cheesy puns, and everyone enabled me.

Title: Naughty Knotty
Universe: G1
Pairing/Characters: Grimlock/Optimus
Rating: M
Warnings: sticky, size kink, domination, knotting, T-Rex mode, alt-mode sex
Description: Optimus has a desire that Grimlock is all too happy to fill.

For NK's Flash Fiction prompt of Grimlock/Optimus which I took and ran into this glorious piece of smut.

If Grimlock facing in his T-Rex form offends you, do not read this fic. Thank you and enjoy.

( You Prime not as sturdy as Dinobot.  )