The curiosity of it started when Ianto barked out a particularly rash remark. The pair had been talking and, of course, Jack had started getting a little touchy. Not wanting any of the team to know, Ianto had quickly bumped him off and shot him a look.

"What? I like using my hands," Jack said simply, shrugging his shoulders.

"Then use them on yourself," the tea boy spat back, brow creased as he shook his head, "this could be counted as sexual harrassment, sir." The word bore spite to it as Ianto shot that look that Jack wasn't sure he trusted.

"I don't usually have to," he decided to say.

"Why, because you use that hand in the case?" Ianto quipped through loosely clenched teeth.

Ever since, the thought had been stuck in Jack's thoughts. He took in a breath through his nostrils before looking at the clock, then to the jar he'd brought into his office and sat on his desk, leering at it tentatively. It took him a moment before he took the lid off of the jar and tried to flex the fingers as he pulled it out, which wasn't as hard as he would have thought.

Almost nervously, Jack Harkness bit his lower lip, grabbing a piece of cloth and drying the hand off, looking it over. This was wrong. This was absolutely wrong on so many levels, but that just made his trousers tighten all the more. It didn't take long before his shirts were pulled off and his cock was out, his own warm, dampened hand and stroked a bit before gripping the wrist of the severed appendage.

He couldn't help but say he was curious and that's what got him in this situation in the first place, but before long, he finally got himself to wrap the cold hand around his cock, pinning the fingers around it with one hand, pinning the back of the hand down with the other. Little by little, he worked digits as he stroked with a dead hand, panting softly.

Why did this turn him on so much? It was disturbing, that was for sure. Maybe it's because it was the Doctor's hand. He moaned out, letting eyelids fall and shield brilliant steel-blue hues as he tugged a little harder, steadily rolling his hips against the hands, the combination of cold and warmth absolutely…

Wait… Wait… Jack let out a guttural groan as his head lulled back and he came. What was the rest of his thought? Oh, that's right, absolutely fantastic… He panted softly, gazing up at the ceiling, poking his tongue out to swipe it over his lips as he purred softly before sitting up and cleaning the hand, himself then putting it away. He flopped back in his chair and looked up, cock still out of his pants, a subtle, lecherous grin across his face. Would he do it again? He wasn't sure. But what he did know was that he kind of actually liked it.

"Why hadn't I thought of that sooner?"