Tattoo Ideas.info

Im 18 and i have one tattoo on my right shoulder and i want to get another tattoo but i dont where i should put it on my body without it stretching overtime because i am still growing. I was planning to get one on my inner biscep of my right arm but i figured it would stretch because i know im going to build more muscle their. I never heard of tattoos stretching over time but i still dont see how a tattoo wouldnt stretch if your body continues to grow. So all i want to know is that if its possible for tattoos to stretch when your body continues to grow. If so, i also want to know where is the best place on my body to get my tattoo with out it ever stretching?
I realize my tattoos will eventually become stretched out and wrinkled when im old. Thats common sense right their, but what i want to know is, is it common to have tattoos stretch out when your body continues to grow within 10 years?

I noticed a lot of females with butterfly tatoos. Why are those so popular with young ladies and what would be equivalent on the male side?Like what tattoos do young males have thats almost like females and their butterfly tattoos?