I don't think you have anything to worry about. We've had several other threads on scars, but as you would expect, most of those questions have centered around abdominal/c-section scars. You'll find that most people have scars of some sort, although there may be a bit more curiosity about yours. Breast reductions aren't something often seen.
Have you tried using Vitamin E oil on the scars? Gentle massaging of the scars with the oil will keep the scars soft and help decrease the appearance.
I'm not certain of the cosmetic concealer as mentioned by NightGoddess. Seems that would come off during playtime, but I do agree with her that they will fade in time.
- EBF