This is, so far, the only interesting armpit hair anecdote I've got (click here if you don't know what I'm talking about), but it's pretty much the best thing ever, so I'm all right with that:
In a moment of post-coital geniality, I was examining my armpit hair both visually and tactilely (i.e. I was petting it), "Look how cute it is! All fluffy... it's like a Tribble! [insert cooing Tribble noises here]."
That led to a sound kissing, and, less romantically, to a discussion of the Deep Space Nine/Star Trek cross-over episode, which led to a discussion of the Klingon's genetic evolution...
Basically what I'm saying is that the best way to seduce a Trekkie is to be a Trekkie.
Live long and prosper!