Sometimes having rosy cheeks may be a bad thing. Let me share with you why:

1)your skin coincidentally is thinner around the cheeks and forehead so you get easily 'flushed' after a short excercise even though it isn't the least bit strenuous.
2)When you smile even the faintest smile, (and I don't mean laugh) you cheeks immediately gets red and you'll be accused of blushing all the time. When some girls see that, they wonder why you are blushing while looking at them and when boys see that, they draw speculations that you like them.

Sheesh. How I wish I had thicker skin.