Smaller..

I love my boyfriend with all my heart. He is absolutely amazing. I've wanted to date him for years and we have even talked about getting married. With that being said...he has a small penis. Very small. He is very insecure about it. It doesn't really please me. I am not sure what to do. I don't want to hurt his feelings or the little bit of ego he has but I don't feel like I should lie either. Any advice?