I don't know how long its been there, but I've never noticed it before. Is it normal for women to have some hair on the top of their butt- on the cheeks? There's not alot, it's light (it's not like pubic or under arm hair) and incredibly fine so surely I don't need to remove it? My only concern is that its long- not super long, but its not short like the vellus hair that's all over the body. Would i be doing any great harm if I just decided to pluck it? I absolutely would never put a razor to it. I don't believe that shaving makes hair thicker or darker but it does create stubble rough to the touch.

wax it.
always wax unwanted hair.

i agree but if its light and not that noticeable dont worry about it