Viktor leaned back against the sturdy wooden chair in his dimly lit laboratory, the faint hum of machinery filling the room like a comforting lullaby. The third arm, his newest innovation, extended naturally from the harness strapped snugly to his chest, moving with an eerie yet elegant fluidity.

But now? Now he was reveling in a different kind of experiment.

His partner, sprawled beneath him on the cot, had become the perfect test subject—albeit unintentionally. Viktor’s wiry legs pinned theirs effortlessly, his weight a careful balance that kept them just restrained enough. His golden-brown eyes glimmered with mischievous intent, a rare smirk tugging at the corners of his lips as he leaned forward, his thin frame pressing closer.

“Sensitive, aren’t you?” Viktor murmured, his voice soft yet laced with undeniable satisfaction. His hands worked deftly, kneading the tense muscles of their shoulders with surprising strength. Each stroke was calculated, deliberate, as if he were fine-tuning the gears of a complex machine.

And that third arm? Oh, it was already proving its worth. The mechanical appendage bent downward, its metallic fingers cupping their jaw with a precision that felt almost human. When it slid further to cover their mouth, Viktor chuckled low in his throat.

“Shh,” he whispered, the sound a gentle tease. “Wouldn’t want anyone to hear, now would we?”

Their muffled protests—or were they groans?—only fueled his amusement. Viktor leaned in closer, the warmth of his breath brushing against their ear as his slender fingers continued their relentless assault on their shoulders.

“Fascinating,” he mused, his tone mockingly thoughtful. “You tense here... but relax so easily with just a little pressure. Hm, perhaps I should take notes.”

The third arm adjusted its grip slightly, tilting their head back just enough for him to observe their flushed face. His smirk widened. He didn’t get to indulge like this often—too busy, too consumed with his work—but when he did? Oh, he made it count.