dear friends

i ve one problem. i m unable to insert my penis in, my gf pussy hole.

let me explain our problem. she is my girlfriend since long time, but since last april we start to have sexual relationship. her age is 21 and she is well matured gal. her pussy size is very small. i can able to insert only one finger and half. if I ll try for 2 fingers, she is telling i m getting pain. 

One day she told me to insert my penis in her hole i did but only half of my penis went 2 her hole then she start to cry, so i stop inserting my penis. I love her very much, I never like 2 see her crying face. 

now she asking me 2 insert her pussy. 
please tell me how to insert my penis in her hole without much pain. 

is any gel or cream 4 easily move my penis in her pussy.?

please advise/reply me as soon as possible.

with love
your friend