I think a lot of women would tell you that anal sex just does NOT feel good. Period. They don't like it. Lots of lube or not. Your wife is letting you know this is NOT a turn on to her. That you keep insisting on it, well. You don't want to fall into the category of selfish, do you? I'm just being honest. It would royally tick me off if my partner kept pressuring me to do things sexually I didn't feel was appealing. That she's tried a bit with the tip of your penis and says no thank you, you REALLY should respect that and do your best to be a good lover to her.
Sex should be something both parties enjoy and she is telling you she will not enjoy it. So, trying to convince her is kind of . . . one sided for you only. Lots of women do not NOT like anal. I really can't advise you on ways to make her want to do it if she doesn't want to. I would suggest finding more enjoyable things for both of you so that she can have a good time being intimate with you. :>) Her pleasure counts, right? And if she doesn't want the discomfort and pain of anal, that's certainly reasonable and you shouldn't want to cause her pain in my opinion. good luck
Men have the “G” spot in their anal cavity which is why gay men typically enjoy anal. Women have no sensation back their, stick to what you both enjoy and what feels good to her. Don’t be selfish in a relationship it’s the worst thing you could do.
My current husband isn't a fan of anal but will do it with me on occasion. I sometimes crave it and am disappointed if he doesn't want to. My husband has actually helped me achieve orgasm while having anal sex with me. My husband is not 7", (I have never met a man who measures that long and to this day still believe it is a MYTH), however my husband's penis generally gets fairly huge, long and thick and on occasion does create some pain due to its largeness. During these times my husband is very patient with me. All I need to do is breathe, relax and then, I start the motion and before too long we are going good again! I say don't give up! Try licking her first, letting her be on top and start extra slow. I never liked anal at first but now love it! If after a few years she still can't get used to it or be able to enjoy it then maybe you should get her permission to try it with someone else. I am not talking about cheating, cheating is wrong! I am saying maybe a threesome or open relationship that works for both of you. I hear you on the wanting to ease her fears, it is true that her mind fearing it could be the main reason why she can't relax and enjoy it. You are right to try to see if she could possibly enjoy it once her fears disappear. To avoid the subject of being "selfish" ask her what other things she wants and give to her in some way. Do something for her she likes but that doesn't really get you off and then you can expect her to do same in return without feeling guilty. And I mean things that aren't each other's favourites that you can put up with in order to please each other, if severe pain still exists then she may need to go to doctor or you may have to accept she just CAN'T do it. Don't give up! Good luck!