Nope, you are perfectly normal. There are many men as well as women who have 4 (and sometimes up to nipples. If you don't like the way they look (if they are fully formed) you can have them removed. Your not mutated. More than likely the two nipples on your breasts will be your 'main' nipples, and they others are defunt of sensation, or the glands that would be needed to breast feed. If you have any questions or concerns talk to your doctor.
i have 5 nipples! And actually i find it a great talking point with girls. Mind u 3 of them are very small but when examined closely u can see they are fully devloped nipples.
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