whoa - too scary for me!!! i have a hard enough time handling one relationship - and have not done that great a job at that for years. mixing it up with more than one just sounds like trouble to me. the casual sex sort of thing reminds me too much of abuse. almost inevitable that emotions will get involved sooner or later on somebody's part. and then - lots of hurts...
seems like you might be better off getting yourself strong and healthy and stable first before making any huge changes like that.
They have greatly oppressed me from my youth, but they have not gained the victory over me.
Plowmen have plowed my back and made their furrows long.
But the Lord is righteous; he has cut me free from the cords of the wicked.