With a few exceptions, it's been my experience that a submissive writes the first draft of any D/s contract. Only a few of the Dommes (but all of the Doms, interestingly enough) I've served have written the first draft themselves. Then, of course, the draft is passed back and forth. Suggestions are shared. Limits and desires are discussed. Additions are made. Then the precious document is signed and my fate is held in its words for how ever many months it is agreed to last.
I fell out of that habit with my most recent Domme, Ms L. I submitted a few examples to her and she drew up the first contract based on what I sent to her. She based our current contract on the first, with a good deal of rewriting and the inclusion of a lengthy appendix containing many of her preferences I must adhere to.
I've also been authoring the contracts for my submissives. I wrote the draft that I sent to a certain butch bottom (that didn't work out), a sexy redhead (referred to hereafter as ChicaX for the sake of convenience and anonymity), and the last few contract I've had with shellyfemme.
However, I'm currently negotiating contracts with two lovely women... shellyfemme and ChicaX. I've reverted back to having them write the first drafts and I'm glad of it. ChicaX came up with something that was a combination of the first contract I had with her, several she found on the net, and a good deal of her own work. It's beautiful and quite fresh. We've spent the last month revising it and plan to sign it into effect this weekend if all goes well.
shellyfemme is supposedly working on hers. I'm very curious to see what she comes up with. Regardless, I'm very happy I've returned to doing things "old school." I think letting a submissive write the first draft gives them a better grasp on exactly what they're getting into, lends them more power in the initial negotiations (which I think is important, because they're the ones giving the beautiful gift of their submission), and offers a sense of responsibility.