interesting thing about breast

A. Average weight about 0.5 kg breast and save 4-5% of total body weight.2. Like the penis, breast tense when aroused.3. The average female nipple is 3/8 inch when tense. Slightly higher than the 5 coins are stacked.4. The average breast size in America is 36C. 15 years ago was a 34B.5. Size was not interesting in the middle ages because they are small, large breasts are considered a good