The first one is actually two fics, I believe. Hold On (http://thistlerose.livejournal.com/1097147.html?style=mine), which is from Bones's POV, and Let Go (http://thistlerose.livejournal.com/1140864.html#cutid1), which is from Jim's. Both are by thistlerose and are fantastic!
There is another story by thistlerose that sounds similar to the second one you mentioned. I'm not sure if it is the one you wanted: A Show of Strength (http://thistlerose.livejournal.com/1281389.html#cutid1). Bones doesn't try to save an ambassador's life, but instead, asks a question during a treaty signing and is whipped because of it.
no subject
There is another story by
I hope that helps.
"T"