How to get used to anal sex?

Hey ladies. So, me and my boyfriend have been together for almost one and a half a year, and having sex for over a year now. We have tried anal couple of times but, damn, it hurts as hell. (he is kind of huge) Now, I really really really want to do this, but this pain keeps me worried every single fucking time, and absolutely kills my mood during the sex. So, how do I get used to it? What can I, or we do? Would anal plugs help me get used to it? Please, I really need your help.