What kind of story would this be if he did?

Jeff instinctually reached down to grip his cock at the root, hoping that he could literally take control, but as his fingers wrapped around his thick base, he let out a groan of both disappointment and arousal as the rest of it not only continued to be stimulated, but now moved faster. Despite having just covered himself and everything around him in his cum, he lacked the usual over-stimulatory discomfort that came from continued stroking. If anything, he felt hornier, and that was starting to freak him out.

He slid his hand up, an easy move thanks to the lotion, and felt the ghostly stroking instead move down to the bottom of his dick. No matter where he moved his hand, it teasingly went where he wasn't. After a couple of seconds, a deep twitch in his body reminded him that now he was just jacking off again, this time with assistance. A few unsteady steps brought him back to his feet, both hands now gripping the side of his desk as he closed his eyes, hissing through his teeth in pleasure as another throb rippled through him, the lotion starting to twist as it tried to wring another load out of him.

Knowing his body, the way his balls were beginning to tense and release rhythmically under him as they continued to be gently tugged and rolled by his imaginary torturer meant he was going to cum a second time, whether he wanted to or not. Fighting his urge to release, he turned and managed to get a few steps away before his knees buckled from pleasure and he fell to his side, arching his back and curling his toes as his cock stroked itself harder. In his last few moments of fully coherent thought, he reached out to grab the wadded up towel nearby to try and keep some semblance of dignity.