Undecided Question

Girls only please…?

i am a 18 year old girl, and am quite annoyed with the fact that my buttocks are comparatively darker than the rest of my body, similarly the skin between my thighs is also quite dark. i need to take care of this because i most probably will be losing my virginity next month to my boyfriend and dont want the above mentined problems to be a turn off. please help. what should i do?