I am married man, dreaming about sex with men

I can't stop myself from going on gay porn sites and masturbating. I am married and I know my wife would not aprove this, but i want so much to get together with some gay or even 2 gays. No I do not think of myself as gay, but i do feel guilty for flirting with men. As a matter of fact I would not mind someone using me as a prostitute to get a sex from for money