Would this work?

I can get a large amount of MC prepaid cards. I would like to use them to get dating sites memberships and register a women character (so, I guess that I would earn 5 USD profit on that: losing less on membership and getting somewhat more as affiliate. Then I would e-whore this character to get even more dough. I am located outside us. Will this work? Can you recommend sites it would work with?

Maybe I was not clear enough. My actual question is, if I do this with any dating site (if such site exists), how long will they tolerate the earnings/membership cost difference and my ewhoring?