I'm a little leary of the green light that was given. The context of his statement makes all the difference in the world. I said the exact same thing to my ex wife before we were married but it was not a healthy statement. I said it because I was frustrated in not getting sex one night and tried to manipulate her by saying she could have sex with guys who "actually did turn her on". I would talk to the fiance either on the phone or in person. Maybe I'm not trusting but I have seen and perpetrated plenty of dishonesty over the years. Leave nothing to chance. Get clarification. If she is hesitant then you likely have your answer.
Playing the Game of Life with Monopoly rules.
Monogamy might just be in my genes
Poly Events All Over