Upton discusses her body maturing:
I don’t really know what the appeal is about… boobs. But I do know that when I was in junior high, I used to be made fun of — for being flat-chested. Everyone would go, She’s not pretty! She doesn’t have boobs! So I always had boob envy. And when finally I went through my growth spurt, and they appeared, and I just… I loved them. So that’s why I like boobs, because I didn’t have them, and then I got ’em. So I dunno what the appeal is for you.