That's an old pictures, models have to gain some weight now because some fashion weeks in certain cities are doing BMI checks now. Adriana and Selita are fuller now than they were a year ago.
I'm assuming you mean a US size 12, as a 12 in the UK and Europe is still very slim, and I thought Marilyn was fatter than that.
I don't now much about Tyra, but, personally, as a woman, I think someone with a figure like Cindy Crawford, Elle MacPherson or Helena Christianson is much more healthy looking and beautiful, than a Kate Moss or one of the really skinny ones! And in the tennis world, Ana Ivanovic is far more attractive and sexy than Sharapova or Hantuchova.
Yea i agree that ivanovic is sexier but Sharapova is NOT skinny! Believe me I dont like her very much but she is not skinny at all. Hantuchova is. But some people are just built like that and they cant do anything about it. But thats only the case with athletes coz for sure theyre looking after their health more than their looks..