
Or just walking in on them making out would work, too.
Please feel free to dispute these points with salient opinions and examples.
Puppy Pairings:
Lance/Joey (despite the inherent heartbreak. Everything else is a fairly distant second.)
Lance/Justin (this pairing seems to have the most variety in characterization. It had to grow on me though, I must admit. I like that Justin can manipulate him and seems to be the only one who can do it blatantly.)
Lance/Chris (oh the snark! These are the two tough but hardcore lovers and wow, the snark, and the intensity when they do.)
Joey/JC (pretty singularly responsible for this is a RENT fic where JC goes to see the show and they end up at Joey's apartment afterward. It seems like Joey would be almost cursory with other people, but would want to make it good for JC.)
Justin/JC (so much pretty my brain melts. Especially in light of the new manip. Plus loyalty on Justin's part is rare and sexy, and this tends to be the setting for that.)
Chris/JC (though it seems a bit inherently uneven to me on JC's part)
Lance/JC (a pairing purely of aesthetics, tends to turn Lance into the Joey of JoLa fics. Lance is too practical and businessminded whereas JC is a dreamer to the frustration point for that kind of personality.)
Justin/Joey (uhm, maybe early Europe, where its experimenting and commitment-free and Justin comes onto him, but otherwise it just doesn't work in my head.)
Justin/Chris (the age difference wigs me, in all honesty. That and I see them as best friends.)
Joey/Chris (Rhys' Experiment series being the notable exception)
Interesting if these turn out in a different order than above:
Individual Boy Pairings:
Lance: Joey, Justin, Chris, JC
Joey: Lance, JC, Justin, Chris
JC: Joey, Justin, Chris, Lance
Justin: Lance, JC, Joey, Chris
Chris: Lance, JC, Justin, Joey
And because who doesn't love a good threesome. These actually surprised me. They're the only ones that work in my head and JC's always third with the first two already paired off.
Party Line Pairings:
Lance/Joey/JC
Lance/Justin/JC
Lance/Chris/JC
Now I'm just having fun.
Pairing Characterization:
Lance/Joey - the Doomed Lovers
Lance/Justin - the Evenly Matched Adversaries in Love
Lance/JC - the Artist/Wealthy Patron (passionate admiration)
Lance/Chris - the Mature Couple with Real Issues
JC/Justin - the Boys in Love Who Actually Have a Chance to be Happy Together
JC/Joey - the Sex Addicts
JC/Chris - the Odd Couple
Justin/Chris - the Buddy Cops
Joey/Justin - the Experimentation Phase
Joey/Chris - again, don't see it at all