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You could imagine that your future owner might be a very attractive person from your gender of preference if you want to, that you'd have to spend the rest of your life working for them, you'd be provided no salary but you would be granted safety from the outside world, you wouldn't be whipped if you never tried escaping or doing anything against your master/mistress' wishes, and that you might be allowed to marry someone after a while. If you happened to have a very good relationship with your owner, you might eventually be able to become their secret lover. Maybe you might be able to have a child with them.
Supposing all goes well, you might even be able to become a free person too after a few years.
Note: you would preserve the appearance you have right now, and would have to learn the language of your owner and the people in your community too if you don't know it yet. If you think of yourself as a good-looking and well-mannered person, then there would obviously be people around you who would see you that way too, who might be willing to grant you special favours because of that.