Disclaimer: George Lucas and whatever film company made the movies owns these characters. I am not making any profit from this work.
Han has never believed in the Force, but sometimes, when Luke is nearby, he can almost swear he feels something. Warmth, like a fire that doesn't quite know where it wants to go next, but knows it wants.
When he first met Luke, the kid's blue eyes were confused but still fierce, and he overcharged the old man just to see what this boy would do. Luke had shone, even in the darkness of the spacer bar, and Han had wanted to pull this golden child into the light and watch him burn. Still wants to watch him burn, but doesn't want the sun to be what lights the kid. Han wants to know what Luke would look like with lust darkening his eyes, with a hot flush cresting along his cheekbones and tanned skin shining with sweat, glowing in Han's bed. Han wants Luke to want Han to want Luke to wantneedwant, in a circle as stupid as the old man's Force.
Now Luke's mouth is clumsy on his own, but /GOD!/ hot as Tattoine's sun and wet like Tattoine could never be. Pretty desert virgin, naïve innocence and blazing something glowing in Luke's eyes, reddened mouth spit-slick and gasping-open as Han's finger traces the bar of heat between Luke's legs.
Han has never believed in the Force, but something shines in this Tattoine farm-raised kid, and Han has no intention of leaving until he finds out what.