Very likely the sp in a marriage would turn into a regular wife.
Remember, you would see her without make-up or when she is in a bad mood.
She would resent it if you neglected her, so she could turn into just another nagging wife. If she was tired she would not be in the mood for sex or blowjobs.
The magic of pooning is not the person you are with, but the circumstances.
Both of you are at your best behaviour and the sp will tolerate things for an hour that she would never tolerate in a marriage.
You really have 0 experience in this matter don't you?
SP's are just as different as anyone you cannot generalize them into one category.
Besides dating SP's I know of a lot of SP's that are in a relationship even married. Some women are just wonderful. Of course everyone fights but from my experience the sex is better not worse. Most SP's save a lot for the special men in their lives. Some love sex and love it even more when it is a boyfriend etc.
The relationship is normally more open and honest.
The only main worry is if the guy becomes jealous. It happens to most men. There is also a worry if the woman gets emotionally attracted to another man.
The SP has to work even harder then another woman at the relationship. Some do!
I have known many girls that even take care of the guy financially and can spoil him.
There are pros and cons just like everything else. I feel that the pros out weigh the cons.
My best relationship was with a SP.