Fic request: McKay/Sheppard, crossovers

[almost-without.livejournal.com]

I'm looking for a few fics: the first one is a McKay/Sheppard where they have to get married on an alien planet in order to get a ZPM. I think their hands are tied together with red yarn. Sheppard teases McKay mercilessly once back on Atlantis.

The second fic was a crossover with Harry Potter, Daniel/Remus, where the two originally met when they were rentboys and again later when as professor/member of SG-1.

Third request is a general one for SGA crossovers with Lost and Star Wars. Anything would do, but any Sheppard/Sheppard or Sheppard/Solo would make me especially happy.

Thank you in advance!

ETA: The first is "Hitched" and the second is "Learned Whores", both found by lakester.