Title: Steam
Rating: M
Genre: Romance/General
Pairings: Smokescreen/Knock Out
Universe: Prime
Warnings: Smut, spike-n-valve, language, pwp, and other nsfw material.

Songs of Inspiration:
"Fever" by Adam Lambert
"Run the Show (feat. Don Omar)" by Kat DeLuna
"Beat Drop" by Simon Curtis

Author's Note: The long awaited second part. It took longer than anticipated and I apologize. School and work have been kicking my ass, and I've been writing this like made for the past two to three days. I wrote a good chuck of it yesterday, a little snippet in Spanish class today, and just finished it a few hours ago, and had to upload this on my break at work because my internet is down at my house and has been down for about a month now. But oh well, at least it's here now. So sit back and enjoy the show.

Steam – Part 2

His optics onlined slowly as he awoke from his deep recharge. He grunted in agitation from being woken so early. He tried to roll over onto his side, but found it impossible to do. His optics blinked wide, but was greeted with darkness. He tried to yank his arms around in an attempt to free himself, but to no avail.

He squirmed around the berth in confusion and slight discomfort. He continued until he heard a light chuckle from across the room. He gasped when he heard footsteps and warm servos rub his thighs. He bit his lip to try and muffle any sound of pleasure that could escape from his mouth.

He heard him chuckle again as he felt those servos rub his chassis and finger slip between seams and tweaking sensitive wires under his arm plating. He keened when a particularly sensitive spot was pinched around his neck plating.

"Come on. Why not let those pretty sounds escape?"

He only responded by biting his lip harder, but not hard enough to draw energon. His legs and pedes shifted in anticipation and slight discomfort from cramps that were building up in his calves. He moaned quietly as he felt one servo move from his chassis to massage his legs, and groaned when he felt another come up and rub his shoulders and neck.

He made a small sound of disappointment as that talented servo left his torso area, but groaned when the servo palmed and cupped his pelvic plating. He thrust his hips up in an attempt to gain more friction from the warm servo, but as he did so, the other pulled away. He felt a digit touch his lips and hot breath hit his audio sensors.

"Ah, ah, ah. This is your punishment for teasing me so much. I'm in control tonight."

He groaned almost pleadingly, as if asking for forgiveness and begging the other to get on with it, but he knew better. His lover was merciless when it came to the task at hand, and he'd be damned if he said he didn't enjoy it.

"Hmm-mm…" he moaned as a hot glossa licked at his neck cables and massaged his shoulders. His lover knew exactly where to touch, and when those delicate and talented servos brushed over them, he melted in the other's arms.

"So sensitive to touch. Never took you to be the type…"

His body jolted when a kiss was placed over an audio sensor and the other's glossa run up his helm fins. Another sensitive spot.

He let out varying whimpers and moans as hands roamed all over his body, careful not to scratch his precious paint. He always loved his partner's gentleness when it came to his exterior. Digits skimmed over his arms and legs, slipping them between transformation seems and tweaking his wires again.

He was so aroused and they hadn't even gotten to the good stuff yet, and his partner loved that.

"Primus, just look at you. I've only ran my hands all over your gorgeous body and yet you're like this. You're so sensitive, KO."

He grunted and frowned, disapproving of the nickname his lover had given to him. He didn't hate it completely, but it still bothered him.

He jerked when servos cupped his thighs and pulled them apart slightly. He felt his lover's helm dip between them and lick along the heated paneling, crying out as he did so. He wanted so badly to open his paneling and almost had done so, but was stopped by a digit against his coverings.

"No, no. You open when I tell you to. Or I'll get up and walk right out of this room."

"You wouldn't dare."

"Try me."

Judging by his lover's tone of voice, he knew not to test the other. He bit his lip to prevent a smartass comment from escaping. He whimpered as fingers traced along the seams of his legs and pelvic region and his glossa swiping over his panel coverings once more.

He jerked once more when a digit tapped at his paneling.

"You can open up now."

A gasp of relief escaped from his vocalizer as his spike was finally released, the pressure from his lower paneling decreasing. He twisted around on the berth as his partner's glossa slowly ran up the underside of his spike. He groaned as a digit traced his valve opening, massaging it, but not thrusting inside.

He screamed in delight as his spike was encased by his lover's mouth, swiping that talented glossa over the end and dipping into the slit, causing him to thrust his hips up. But, the other held them in place against the berth. He thrashed around in frustration and growled at his partner when he chuckled in amusement.

"You fraggin' litt—Hmph! Hmm!"

He jerked in surprise as a gag was strapped around his mouth.

"Was gettin' real tired of your smartass mouth."

His optic ridges furrowed in frustration and slight agitation, but that all disappeared when he felt his lover's glossa swipe over his valve. He keened when the appendage slipped inside, tracing over internal wiring and lapping at lubricant that was practically dripping out of him.

Servos slipped underneath and cupped his aft, giving it a squeeze before lifting up his hips for a better angle. He groaned when Knock Out wrapped his legs around his shoulders, trying to get him to thrust his glossa deeper into his willing valve.

He complied and thrust as far as his glossa could go, flicking over a sensor node, causing the other to cry out in intense pleasure. His head crest bumped into the other's spike and rubbed softly at the underside.

He felt Knock Out's valve clench around him, warning him of impending overload. He pulled out his glossa from his lover, relishing in the sound of desperation his partner gave.

"Don't worry, Knock Out. You won't be empty for long."

The medic felt the bed shift slightly a few times before servos returned to his legs, spreading them wide. He groaned in excitement at what he thought was to come next, but gasped when something cool was rammed into his valve. He was about to let out a sound of protest, but all objections were silenced as vibrations began to ripple through his opening.

He felt no stimulation from his partner after the vibrator was thrusted into him, and keened in pleasure and frustration from the lack of physical attention. He heard the other chuckled softly and he growled at him in slight agitation.

"Oh, what' the matter? Miss my servos? You're always so desperate for attention, aren't you?"

The medic huffed before turned his helm away. His faceplates were a dark shade of red from the arousal his body was subdued to, and oral lubricant ran down his chin from behind the gag.

The gag muffled a scream that came from vocalizer as the toy was pushed further into his valve, massaging sensor nodes and sending waves of pleasure through his entire interface paneling.

A muffled cry of pleasure rang out as his partner began to thrust the toy into his valve, fast and hard, turning the setting up to the highest it could go.

"You know, if you can be good, I'll take off that pesky gag for you. But only if you can prove that you'll be a good mech."

Without a second thought, Knock Out nodded his head. He felt the bag being removed and sighed in relief, but a few moments later felt something thick and sticky press against his lips.

"I did say that you had to prove it to me."

His optics ridges furrowed again as he grunted, before opening his mouth to wrap around the head of his partner's spike. A servo caressed his helm, stroking his fins as he sucked and licked at the appendage in his mouth.

He groaned, sending vibrations through his lover's most intimate area before swiping his glossa the slit, repeating the actions his partner had done on him before. He heard him groan above him, making him smirk internally. He hollowed out his cheeks and swallowed around the length inside his mouth.

Feeling the hot, wet, and silky walls of his lover's mouth around his spike grow him crazy, gripping the other's helm in a vice. Hearing the sound his lover made as he sucked and licked his spike and the feeling of his mouth around him caused him to pull away and unable to hold on any longer, overloaded onto his faceplates.

He fell back, his intakes panting, watching his lover lick up whatever transfluid he could reach with his glossa.

"O-oh frag, babe. You look so hot. Aaah, you're making me hard again just by looking at you."

Knock Out panted slightly before speaking up.

"Once I get out of this, you are so going to pay for that."

"Is that a threat?"

"A promise."

The other mech chuckled as he pulled the toy from his lover's valve, enjoying the sound of disappointment that came from him. But, that feeling was short-lived as he thrust two digits into his waiting valve, a cry of surprise and pleasure as over stimulated sensor nodes were pressed against. His spike was leaking transfluid and his legs quivered.

"Which would you prefer, KO? You, being fragged by my spike, pounding hard and fast into you as a smash into your ceiling node over and over? Or, would you rather have me ride you, my hot, dripping valve clenching around your spike, bringing you to overload while shove the vibrator back inside of you, pushing it right against your ceiling node, bringing you to sweet overload as you release your sweet transfluid inside of me?"

He felt hands press down gently on his torso and hot breath against his audio sensors.

"Which to you prefer?"

He bit his lip in peeked arousal, his thighs tightening.

"Frag me! Oh sweet Primus, frag me!"

He heard his partner chuckle. 'Damn it.'

"If you can beg a little bit more for me, I'll frag you until your legs are shaking and the entire Nemesis knows my name."

"Oh for the love of Primus! Please, I beg of you. Frag me. Frag me hard and fast and rough and don't stop unless I tell you to! Frag me until I can see straight, just please! Stop teasing me! It's beginning to hurt."

He screamed as the other's digits rammed into his ceiling node once before pulling out.

"Don't worry, babe. I've got you. Just sit back and let me do the work, and I'll give you the best overload you've ever experienced in your whole life."

"Hm, a bit full of yourself, aren't you?"

"You have no room to talk."

He writhed as once again, those talented servos lifted his aft up a bit and rest against the other's hips. He brushed the tip of his spike around the entrance, making the medic squirm and whimper.

"Oh Primus, just frag me already!"

"Alright, alright. I've teased you enough."

And with that, he lined up his spike to his lover's wet, dripping valve, and slammed inside. The other mech let out a scream as he felt a slight twinge of pain but then overwhelming pleasure. He wrapped his legs around his partner's hips, urging him deeper into his valve.

He felt the other reach over him, torso stretching beautifully across his chassis as he unlocked the cuffs from around his wrists. At being freed, Knock Out brought his arms down to wrap around the other's shoulders. He clawed at his bad and scratched at pristine white plating as his partner's movements intensified.

He dragged his claw-like digits up and down his lover's back, leaving gray trails of primer where white used to be. He thrusted his hips up, establishing a rhythm as the other pounded hard and fast into him, leaving him panting and crying out in pleasure.

He still couldn't see, but it didn't matter to him. Having his sight taken from him only intensified his pleasure. He screamed when a servo enclosed around his spike, rubbing hard up and down, skilled digits running over sensitive spots with practiced ease.

"Oh, frag! I'm gonna—Aaaah! I'm going to— Oh, fraaaag!"

"Scream my name, babe, then you can overload. Just once."

He moaned as his lover's thrusts increased in speed and force, crying out at the playful smacks that were placed against his aft. He could barely hear what his lover was saying and he was so overwhelmed with pleasure that for a moment, he forgot how to speak in coherent sentences.

"I said—ngh, scream!"

"Aaah, ah, ah Smokescreen! Yes yes yes! Smokescreen!"

A few well-placed thrusts against his ceiling node did him in as he overloaded over his lover's servo and chassis. He panted, trying to catch his breath from his processor-blowing overload, and taken by surprise when his felt his partner's soft lips smash into his, glossa slipping into his mouth and he met his peak and overloaded inside the medic's willing valve.

"Ooooh, frag yeah."

"Slag, you just love the rush of transfluid inside of you, don't you? The feeling of my essence sloshing around inside of you, marking you as mine."

"Hmm… shut up."

He heard the other chuckle as he slipped his digits underneath the blindfold around his optics, crystal blue meeting crimson red. Smokescreen had a smile across his faceplates while Knock Out smirked before the two leaned in for a kiss.

"That was wonderful."

"It sure was… I… didn't go overboard, did I?"

Knock Out touched his warm faceplates. "Oh no, you were wonderful."

The two lovers laughed and lay on the berth before Smokescreen.

"Hey, um… what did you mean by you were going to get me back for overloading on your face?"

Knock Out's back was turned to him, and content sigh escaping his vocalizer.

"Don't worry about it; I've already gotten my revenge."

"What do you mean… oh no you didn't…"

"Oh yes I did."

Smokescreen shot up from the berth and ran to the private wash racks, turning his back towards a mirror and looking over his shoulder to see primer gray were his pristine white paint once was.

"You son of a glitch!"

That was the last thing Knock Out heard before falling into recharge, and smug smile plastered across his faceplates.

Damn, this was way longer than the first part. It was a lot easier, too. I just love bottom!Knock Out.

Anyways, thanks for reading and reviews are much appreciated!