Ok ok... first it's p0wn. Must use numbers to spell it. Don't ask why, we gamers are nerds and just do things that way.
Second.... a husband and wife do sign a contract. It's called a marriage license. Now, if you don't think that holds each party to some very serious standards... you might want to take a moment to look into your state law. I think you'd be surprised what they are agreeing to in the signing of that license.
Now... being owned by someone is as old as written history. And not, it's not slavery in the traditional sense. Men used to buy women from their fathers with livestock. How romantic is that!? I have the choice who I belong to. There is a comfort in being owned by someone. There is a calm and peace there. This peace can only exist with trust and love, not with just anyone who calls themselves a Master.