Pairing: RID Optimus Prime/Sideswipe

Rating: Explicit

Details/Themes: Spanking, rough sex, Optimus secretly loves to dominate and toy with his prey

Requested by Emyly001

He had been a very bad bot.

His attitude towards the Supreme Leader of the Autobots earlier that day led to his teammates scowling at him, all but one. Considering the crap Optimus took during the war, words of a rash delinquent hardly tainted the truck's patience. Bumblebee may have given him a displeased look but Optimus' was…unusual. Now he knew why.

"Do you think you can get away with such insolence regarding your superior?"

Whack!

A smile tugged on the younger mech's lips. "Yes…"

WHACK!

Several more slaps on his aft left him panting. The first did indeed hurt but after the third hit, he had started to press against the servo that struck him. Optimus kept a sturdy face which Sideswipe found was oddly sexy while he was an overheating mess and a half.

The Prime snarled, "Your attitude will be your undoing. Continue to disobey and disrupt me and I will make sure your punishments are vindictive."

"So, the ultimate Autobot can be cruel," Sideswipe taunted. "I'd love to see you try."

Optimus narrowed his optics but a barely visible grin twitched on his faceplates. If that's how it was going to be…

A few minutes later, his tormenter had taken things farther up a notch than Sideswipe ever anticipated. Sideswipe gave an uncharacteristic whine of lust as the largest spike he ever saw rammed through him. He was stretched far beyond his limits but no pain was found while his tight valve greedily clenched, begging for Optimus to take him more. Another sharp sting to his aft made him hiss but did little to halt his charge. All of this dominance was becoming a very guilty pleasure for him to the amusement of the Autobot Leader.

Whispers suddenly caught his attention but did not hinder the pace of their rut. "Every time you act up around me, every time you disrespect your fellow teammates, you will be reminded where your place is: my subordinate toy."

Popping out of the slick valve, Optimus gave a satisfied smirk as Sideswipe began to plead with hazed optics for him to return. His servos opened the wet lips to see how the inner mesh was reacting to being so empty.

"P-please, Optimus, frag me! Don't leave me like this! I am so close!"

A darker expression made its way onto the Prime's face. "I said this was a punishment, Sideswipe. That was just a taste of the reward I am willing to offer you for your compliance. You will learn to be patient until I decide when you get to finish. This will be one of the many things you will endure and I cleared my schedule so I have all night if you wish to draw this out longer than it should go. If you wish for me to continue, you will obey what I say."

Sideswipe cowered, "You mean this is going to happen every time?"

"No, not every time. I may be lenient but I certainly won't say when though I will find new ways to discipline you, each more unbearable than the last. Humans, as I have heard, have come up with wonderful methods of punishment so a bit of experimenting is in order. Now I want you to reflect on what you've done by staying put and silent. Is that clear?"

"Yes…sir."

Optimus made the younger mech lie there for what seemed like an hour, stroking his subordinate's aft just to tease what the latter couldn't have entirely. Every minute or so, Sideswipe would complain or try to move which gave him an extremely hard slap that wasn't as pleasurable since there was no more energy to build off of. It took a while but finally, the speedster actually managed to stay still and quiet for more than three minutes. It was made sure he was not in recharge either.

In the spare time, Optimus had taken up a novel to read while he waited for Sideswipe to cool down. It was one of his favorite pastimes to read human books. After calculating midnight was approaching, the Prime smiled and put away his data pad.

"You have done well. Since you finally have a grasp of what I simply ask of you, you get your reward."

Sideswipe nearly jumped up with excitement and immediately presented himself to the Prime. His building overload may have died down but he was already beginning to leak through his opening just thinking about his leader splitting him apart. Carefully, Optimus slid his still erect spike into the awaiting folds, growling as the heat engulfed the sensors. Just as soon as he entered, he started to thrust inside the red mech at a great pace.

"You see, Sideswipe, you being brash doesn't get you anything but when you listen and learn to ignore your needs for others, you earn something out of it. If you comply, I'll treat you nice and we can frag as much as you want. Failure to do so and you become my toy for the night and I will not play with you fairly."

In less than a minute, Sideswipe was once again a frenzied mess. The Autobot Leader debated whether he should stall the growing overload of his subordinate again but decided against it because he believed the youngster had learned enough for the day. Of course, it was yet to be determined whether Sideswipe learned his lesson entirely. Probably not…but he never said he expected the punishment to work the first time.

The Prime clutched the side of the smaller mech as he pounded him to oblivion. His own pants became coarse like a bull's when he grew desperate to overload. It was rare for him to become avaricious, especially for pleasure, but this time it had been so long since he had release and he wanted to seize the moment. Sideswipe seemed to be thinking the same thing because with his mouth slack, he was pushing back at a much furious pace than Optimus thought he could take.

Sideswipe was the first to fall and he left imprints in the soil from clawing at his release. A roar from the Autobot Leader rumbled deeply in response as transfluid ejected into his host warm and sticky. Both of them overloaded with Optimus filling the smaller mech to the brim while Sideswipe gasped and bucked as the remnants of his orgasm rippled through him. Although he had been denied his pleasure prior, that was one of the best frags he ever had.

Smirking, Sideswipe purred, "You know, it's like you said: be patient and the payoff is nice. But what if I'm bad on purpose just to get you riled up. You may punish me but in the end, I'll still get you to frag me. You may be able to resist fucking me the first few nights to teach me a lesson but you'll cave eventually so we both get what we want."

Optimus hadn't considered that factor. As arrogant as Sideswipe was, stupid he was not. So apparently there was need for more discipline to tame his new toy. A part of him was a bit glad Sideswipe decided to stay cheeky; it would still be fun either way.

AN: Sideswipe, you are in for a roller coaster ride of pleasure and denial! I thought that outburst in the first episode of Season 2 of RID15 was one of the funniest things I've ever heard someone call Optimus and this did linger in the back of my mind for a while. Fortunately, Emyly001 requested it so I actually got to do it!