Open Question: Girls I need help with a guy?

Girls I need help with a guy? I only slept with two different guys but I was in a long term relationship and I have always been satisfied with my love life. But now I am with this new guy he is really charming, good looking, and really romantic... When we started to get intimate and I saw his 0_0 it was huge. He was over twice the size in length and girth of my past boyfriends so everything came to a screeching halt because I got really nervous. It looks like it would hurt. Is it a good thing that he is bigger or is bigger not always better? Any tips because I really like him? Thanks everybody for answering...