I'm not certain but that sounds vaguely like Roger Zelazny's "Halfjack".
Here is a summary from a review:
This isn’t a story, so much as a scene. We meet HalfJack, a man who is half-machine and can connect to starships. His skin, on half his body peels off (which is what happens, graphically, in the course of the story). After we learn this about him, he leaves. And that’s the story. It’s a nice and interesting scene, but nothing more or less than that.
