It turns out that a man's obsession with large breasts isn't as creepy as some people say. Hey, give them a break! It's just evolution's way of making sure they find a good mating partner (and have fun finding her). You do want the human race to survive, don't you?
Pre-teen girls and women past menopause have one thing in common when it comes to breasts. They both have little or no firm or full breast tissue. A woman's bust is a strong indicator of whether or not she's the right age to have children. You might want to check her ID though.
#3 Face to Face
Since humans are one of the very rare animals that have sex face-to-face, men have had more opportunities to admire a female's breasts during sex. Over time, breasts became associated with sex itself. And we all know men love that.
#4 Fat Can Be Sexy
Back when our ancestors lived in caves and had little access to food, a woman with more fat on her body was more likely to successfully carry out a pregnancy. She had more energy to pass on to her baby. So women with more fat reserves became more attractive. And since breasts are primarily made of fat, and are also a good symbol of the ability to store fat, they can grab the attention of any old caveman.
#5 Hourglass Figure
No matter where you are in the world there is one thing for certain, men love a woman with an hourglass figure. This is because women with this body shape are less likely to get a variety of diseases. And you can't get that classic curve without the top part of the hourglass.