Transformers headcannons/bloopers/oneshots (CLOSED)

Optimus x Wheeljack (omegaverse)

Prompt/s: Wheeljack sat on Optimus' lap, with a massive vibrating false spike in him while Optimus is content to work and cover his omegas mouth
According to Optimus, Wheeljack needs to learn to overload from being fucked in the ass, or Wheeljack won't get to overload at all. Ever.
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Wheeljack squirmed on Optimus' lap as the vibrating false spike sent waves of pleasure through him. He bit down on the cloth that Optimus had put in his mouth to muffle his moans, but it was becoming increasingly difficult to keep quiet. Optimus was focused on his work, his hands moving over the console in front of him as if nothing else existed. Wheeljack couldn't believe how incredible the false spike felt. It was unlike anything he had ever experienced before. The vibrations were strong and consistent, and it hit all the right spots. He couldn't resist grinding down on it, seeking more friction and pleasure. Optimus seemed to sense his movements and glanced down at him. He smirked and lifted his hand to cover Wheeljack's mouth, pressing down firmly to cut off any sound. Wheeljack's eyes widened, but he quickly realized that he enjoyed being silenced in this way. The sense of helplessness and submission was a turn on for him. As Optimus continued to work and cover Wheeljack's mouth, the pleasure in his body built up to a feverish pitch. He could feel himself getting closer to the edge with each passing moment. He tried to signal to Optimus that he was close, but the Prime seemed to be too focused on his work to notice. It felt weird having something in his valve and he whined softly, he loved being a submissive dont get him wrong but hes never overloaded from being fucked from his valve. Optimus noticed the change in his demeanor and pulled him closer, his mouth moving to Wheeljack's ear. "You need to learn to overload from being fucked in the ass, Wheeljack," Optimus whispered, his voice low and commanding. "Or you won't get to overload at all. Ever." Wheeljack's eyes widened in surprise and fear. Overload was the ultimate pleasure for any transformer, and he couldn't bear the thought of being denied it. He nodded his head in understanding and braced himself for what was to come. Optimus pulled the false spike out and Wheeljack whimpered in protest, but Optimus silenced him with a stern look. "This is for your own good, Wheeljack," he said, before positioning himself behind the smaller mech. "Alpha!~ no please- i- i don't want-" Wheeljack mumbled against the cloth in his mouth, but Optimus didn't listen. He pushed his spike against Wheeljack's valve, slowly entering him inch by inch.

Wheeljack whimpered in pain and discomfort, but Optimus didn't stop. He continued to thrust into him, slowly and deliberately. Wheeljack tried to relax and let the pleasure take over, but it was difficult. He had never overloaded from being fucked in the ass before, and the sensations were overwhelming.

Optimus was patient with him, though. He whispered encouragements in his ear and stroked his back, soothing him and making him feel safe. Wheeljack began to relax, and the pain slowly gave way to pleasure.

He could feel himself getting closer and closer to the edge, his body trembling with need. Optimus knew just how to hit all the right spots, and he varied his pace and angle to keep Wheeljack on edge.

With one final thrust, Wheeljack came hard, his body shaking with pleasure. Optimus followed soon after, his own release triggering Wheeljack's second orgasm. They collapsed onto the floor, panting and sweating.

Wheeljack lay there for a moment, catching his breath and basking in the afterglow. He had done it. He had learned to overload from being fucked in the ass, just like Optimus had wanted.

"Thank you, Alpha," he said, his voice barely above a whisper.

Optimus smiled down at him, a look of pride and affection on his face. "You did well, my omega," he said. "I'm proud of you."

Wheeljack smiled back, feeling a sense of accomplishment. He had pleased his Alpha, and that was all that mattered.