It’s not something he does often.

Puck and Kurt accidentally meet up after school.

Kurt is being anonymously manhandled. Guess who's behind it.

How to improvise and always say, “yes and”.

This was why he never went jogging after dark.

Glee.

Kurt starts dating a baseball player. Puck is not pleased.

Puck assumes wrong.

One thing Puck does very well is going down on girls, and while Kurt might technically be a dude, he's still dressed like a girl

Prompt from some awesome Anon in the fic meme:Kurt's asexual; but he finds himself romantically attracted to Puck. Problem is he sees Puck as a highly sexual person and he doesn't think Puck would be even slightly interested in a relationship with a nonsexual partner. So Kurt tries, very awkwardly, to initiate sex. Puck realizes halfway through Kurt's not really into it. Cue confrontation and (eventually) a happy resolution. (And maybe Puck being offended Kurt didn't give him the benefit of the doubt.)

All was right(ish) in the life of Noah Puckerman: he had a decent job, he spent most of his downtime up some cheerleader’s skirt, and he got to screw MILFs on the side after scrubbing their pool liners clean. But when he starts noticing Kurt Hummel’s presence more than he used to (and a hell of a lot more than he should), things start to get really freaking complicated really freaking fast. Between field trips, car crashes, weddings, hotel rooms, and less actual sex than he knows how to even survive -- Noah finds himself stumbling unexpectedly into something that looks suspiciously like a relationship with the same little fairy boy he used to throw into dumpsters. And that, ladies and gentlemen, is enough to throw any hot-blooded teenage boy for a freaking loop.

Kurt revenge-seduces Jesse St. James. The glee club helps.

Finn helping Puck get his act together with Kurt