I'm assuming you're not particularly big-breasted? I have relatively small breasts (at least compared to porn-sized breasts). My S.O. loves big breasts, but says he loves my breasts just the way they are. I think you should have an honest conversation with your hubby explaining that you are feeling insecure.

There are many advantages to having small breasts though, show off these advantages to your hubby! For example, because I have small breasts, I can go out without putting on a bra. My S.O. loves seeing my breasts bounce around and my nipples show through the fabric when I'm in public. Similarly, I can jump around without my boobs hurting like crazy. So, I'll shake and bounce my boobs around in front of my S.O., which drives him crazy! Consider adorning your breasts in some way. You could pierce your nipples or wear chain harnesses that many men find extremely sexy. You could even just find a sexy bra that makes you feel like a million bucks! Sometimes, when I'm insecure, finding a way to celebrate the thing that is making me feel insecure, makes me feel much better about myself!