Blaze

by Fierceawakening

Spoilers for Darkest Hour in the ficlet and in this summary. Tiny little vignette in response to a conversation on dirty-tf-secrets on Tumblr reading "Now I can't stop imaging Megatron and Starscream celebrating their success with a rough sexy frag." "Right on top of the smoldering Autobot symbol." Something of a gift for queertoons. M for sticky/size kink/some roughness/violence.

Starscream's claws scraped against the floor as the massive spike slammed into him over and over again. Megatron drove in deep, his one hand clutching tight at Starscream's hip, the tips of his claws digging in hard enough to draw energon.

His spike was too thick for Starscream's narrow valve. Months ago, Starscream's valve had been used to this, the lining of Starscream's valve shifting to accommmodate Megatron's size. But he'd been away so long that his frame had reverted to its defaults, his valve narrowing to its normal size. Megatron had had to batter his way in, tearing past the rim of Starscream's valve, denting the thin plating.

Every part of Starscream ached, inside and out, stinging from the stretch of that relentless spike slamming into him again and again. And yet, its impossible width rubbed against every sensor in his valve, awakening long- hidden clusters of sensory receptors that no other spike he'd ever taken could reach. Starscream shuddered, rocking his hips, pushing himself back on the bludgeon invading him, keening at the wave of pain and pleasure it brought him.

His claws dug hard into the metal of the floor, gouging deep cuts through the logo painted on the metal. This base had once belonged to the Autobots; now it lay in ruins, a circle of flame rising just beyond where Starscream squatted on all fours in the center of the room. He could feel its heat, searing his fingers and his knees as his claws scraped at the design, tearing slashes through the optics of the painted face.

Megatron growled in response, rearing back and slamming into him harder. Lubricant pooled at Starscream's entrance, a silvery mass shot through with the faint blue glow of energon from the tears Megatron's spike had made going in. The mixture dripped from Starscream's valve, pooling below him, smeared over the mouth of the Autobot symbol.

Starscream threw back his head, his spark crackling with heat as though the friction or the fires around him had fed it. He knew Megatron well enough to know that the big mech was beyond words, the heat and constriction of Starscream's impossibly tight valve overwhelming him just the same as the movement of the thick spike inside him seared his own sensors to unbearable, blissful life.

So this is what happens when we win, Starscream thought, his smirk becoming a wide, open-mouthed cry as Megatron drove impossibly deep, roaring in triumph and flooding his already too-full valve. He shuddered once in response, his valve locking tight around its invader, claiming the thing that had staked its claim on him.