Is it true that it is very difficult to make younger women cum? My gf is 19. I eat her out a lot and she definitely seems to be experiencing a lot of pleasure when i do it but I can never make her cum. She usually stops me because she gets tired of it. I asked her about it and she said something like "It feels really good at first but after a while it's just like 'whatever' ". Is it because she is so young or am I just not doing it right? I dont really have a technique when i do it. Basically i just start on the outside, lick the inside of her vagina for a while, and then i kinda just lick up and down, sliding my entire tongue in such a way that i am licking her clit as well as the inside of her lips with every up and down motion of my tongue. Can anyone tell me if i just don't have a good technique or if it has to do with her age?