It's over at mash_slash on livejournal (*spit!*): Knots and Crosses, and the pairing is described as "Klinger/Mulcahy - if you squint". Wonderful sweet story, sort of just on the celibate side of slash.
The Next 48 Hours, by xylodemon: Trapper/Hawkeye. Gosh, this is good: it reminds me why Trapper and Hawkeye are my favourite canon couple. if it hurts, it heals, by mijmeraar: Hawkeye/BJ. Post-"Sons and Bowlers". Also good, though Hawkeye/BJ will never be more than my third-favourite non-canon couple.