I agree with Mare because it perfectly normal to lust after other wommen when your a guy.  I don't think you have anything to worry about just as long as you stay faithfull to your girl and she is the only reall true love in your life.  But the one thing that you don't want to go do is screw around with one of them cause then you have the risk of losing something that you said is very important to you. People say that you never know what you have or what you have, whatever until you lose it.