Quote Originally Posted by Dragon's muse View Post
For me the only two deal-breaker, carved in stone requirements are
1. Honesty
2. Willingness to communicate.

Almost all of the other "nice to haves" can be grouped under those two things. But then those things are requirements for any relationship, D/s, 'nilla or otherwise.
I'm not sure "willingness" cuts it. It's essential but not enough. Me and my ex were both willing, and had comunication problems anyway. You need to be able to connect somehow.