>>1
Getting married and having a wife is (obviously) NOT free.
Nor a guarantee that you'll get sex.
Having a girlfriend who always bugs you for rides, dinners, movies, etc. is NOT free.
It's a good subscription service if you manage to find yourself a kinky one that will give sex often.
Paying to buy a girl a drink in a bar so she'll sleep with you that night is NOT free.
Plus you'll usually get ugly, drunken skanks there. Not worth the money and much less the effort; if you're up for quick sex go find a hooker. It costs the same, but they won't have you playing stupid girl "attraction" games; you won't have to lift a finger to get to the sex.
Paying for a girl at a brothel is (obviously) NOT free
Street whores are the cheapest. Then you can find reasonably priced whore houses, which are safer and cleaner, and usually look better. Whore clubs usually cost more with drinks and all. And then you have scorts, who are the most expensive ones but the most exquisite ones, have proper education and will do whatever you agree, including going on dates or to parties and pretending to be your girlfriend so you can fill your pals/co-workers/family/etc. with envy.
Raping a girl, getting caught, and facing the legal consequences is NOT free.
This is not recommended. The sex sucks, unless you're into that, it's an ugly thing to do, and chances are that you're caught and that cell-mate Bubba ends up raping your ass in prison.
So is it even possible to get free sex (as a guy)?
Uh... generally not. Women can have free sex from any man they point the second they ask for it, and they even can ask for freebies. Men are fucked, because we live in an unjust world. Your best chances would be... chat rooms filled with extremely horny girls who are fraught with testosterone and will agree to arrange a date to fuck, or swinger forums - those do it for free most of the time.