well, how much is "really likeing to"? like 3+ times a day? i do it like 1 time a day, i think 1-3 is normal.
and if your parents arent like overprotective type, they probably know its normal. if they are the parents from the 50's ideas then they will probably think its kinda strange but not say anything. most parents even tell there kids that its normal and good to do it.