It sounds like you’re referring to a common myth.
There is no scientific or psychological evidence that a woman’s breast size reflects her “inner part” — whether that means her personality, femininity, sexuality, fertility, emotional depth, or health.
Breast size is mainly influenced by:
- Genetics
- Hormones (especially estrogen)
- Body fat distribution
- Age and life stages (puberty, pregnancy, menopause)
It does not indicate:
- Character or personality
- Sexual desire or ability
- Fertility or reproductive health
- Emotional capacity or “inner femininity”
If you meant something specific by “inner part” (for example: health, hormones, fertility, or personality), tell me what you were thinking and I can address that directly.