See to me, Marisa is one of those models that doesn't even consider high fashion but sticks with swimsuit and lingerie. Usually the only runway she'll do is Miami Fashion Week probably, which is mostly swimwear. I mean she's got a lingerie body. Yes, her ta-tas are all natural, as mentioned previously she WAS in Perfect 10 which was Playboy without plastic surgery. Not to mention she is a surfer girl so it makes her a natural fit for the swimwear.