Sorry, but this isn't even a very interesting fetish. It is rather normal... mundane even. I don't see any reason that you should be self conscious about this. I certainly don't see any reason for you to try to "remove" this.
You should accept your sexuality.
When you are in a relationship, you should certainly communicate this to your partner.
In a good relationship, partners communicate what turns each other on to each other and as long as it isn't harmful or extreme a good partner will oblige.
I am sure that most women would be fine with wearing thongs for their lover. And likewise you should be willing to wear whatever turns on your partner.