Helping out a Buddy in Need

SG: A fandom being what it is, I’m sure the story I’m thinking about has already been written. So help me find it, kind people! The one I mean is the story in which Rodney and John have sex, and it’s incredibly, amazingly good, and Rodney finds out that he gets off on bottoming like nothing that he has known before. And then he breaks up with John because of it.

Being such a control freak, the overwhelming orgasms are terrifying to him. John doesn’t get it at all, and keeps stalking poor Rodney, who has really crappy sex with a whole bunch of people to try to escape, though he can’t quit the away team because that would just be admitting defeat. And John is really nice to the folks Rodney sleeps with and they don’t realize at first that rotten things and assignments and mysterious odors start happening to them as soon as they get involved with Rodney.

Meanwhile Teyla knows something is up. She thinks that John broke up with Rodney and starts to try to get him to give Rodney another chance, and talks Ronon into wooing Rodney to make John jealous. And then I forget what happens, but I really want to read it.
So where can I find it?