Sounds like your boyfriend is selfish and cares more about his pleasure than your pain. I've never done anal but I really would not want to do it with a guy who says I should basically endure the pain to please him and make him happy. Doesn't sound like he cares about making you happy., Its your body, you make the rules
Here's my basic write up on anal sex link
You have a bigger problem. Someone who insists on having sex with you that you don't want is committing rape. He doesn't have the right to demand access to your body, that's yours, to do with as you please. Since he doesn't respect that, he needs to be gone.
He's a jerk. Get rid of him.
It's not that big of a deal.I mean,i should want to please him.
Wanting to please someone and enduring pain that they insist on creating are two vastly different things. While you are welcome to try, he isn't welcome to pursue it beyond "no". Anal sex can be very fulfilling and satisfying if done right. If done poorly, it is an insulting at best.
If he is in too much of a hurry, it will always hurt. The key is to go slow...even stop until the pain subsides. You also have to be completely relaxed. If you are in any way tense, that can also cause pain. Try having a few glasses of wine beforehand. That might help you to relax, and make sure he go slow.
Scroll Down to Read Other Opinions
What's Your Opinion? Sign Up Now!It doesn't matter if it hurts you since it's your job to satisfy him. It seems like your a good gfby at least doing your role. Keep doing it and he's gonna love you forever.
I'm a guy, and I've never had anal sex in my life. But I'm guessing you'd just get used to it over time, and talk to him about it some more. I mean, it really doesn't sound fair to you in this situation. Haha!
He has to take his time and let you relax. My girlfriend and I tried all kinds of things to make it less painful for her when we began to do anal, but this is what worked for her. Over time it will get easier for you and believe it or not, more exciting for him. My girlfriend loves it now and I sometimes think she prefers anal sex over vaginal sex! LOL
Sexual Relationships 
Sexual Health 
Most Helpful Girl