I've often wondered when and how I was influenced to prefer big breasts. Among my friends, there is a wide variation in "the perfect size". My brother happens to prefer very small breasts. But in my opinion, the most popular size would be DD. At age 53, I have witnessed many changes, some very extreme, in women's fashions. Breasts have gone in and out of style with regularity. My personal favourite size for a woman would be an F cup, as long as the breasts were mounted on a well-conditioned body. I believe it's important for any woman larger than a D cup to take part in a daily exercise routine which keeps the back muscles strong. The largest breasts I've encountered were on a woman who wore a 36 M. She was reluctant to exercise, and she paid the price. She became round-shouldered and developed a serious curve in her spine. And because of these structural problems, she suffered constant pain. She finally had a reduction. There are 5 layers of muscles in the back, and it is their job to maintain correct spinal alignment. For any large-breasted woman, without exercise, trouble is not far away. At the time I knew her until recently, I didn't think that it was possible for breasts to grow larger than an M cup. Two months ago, I changed my mind. And this is going to fire up the imaginations of the guys on this site whose dream-come-true is a woman whose breasts are off the end of the chart. What are probably going to be the biggest breasts in the world when she stops growing, are those belonging to a teenager in the UK who has a rare medical condition. With an otherwise normal sized body, her breasts account for ONE THIRD of her total body weight. Not surprisingly, she wears a 32 W bra.