This is true, she can't, and won't say no to anything, regardless of how degrading, embarassing, etc, She doesn't know what embarassing is, or degrading, she just hears an order and obeys. If she suffers, it's because you deem it so, if she thrives, it'll be because of you, She can't, won't, and doesn't know how to do things on her own, obedience was drilled into her. And of course, She'll always come to me when called, and I may use her when and where I please, as well as check up on her. So... she's yours to take care of, and like Seb said, you fuck this up, and it'll be the last thing you do... You'll get whatever you want from her, all you gotta do is keep her healthy.
