Your question is like a riddle. I'm not certain which way is up. You don't give me many facts or even genders. Are you a man asking me how to get your man to let you "do anal sex" to him? Are you a woman asking me how to get your man to do anal to you? Are you a woman asking me how to get your man to accept your strap-on dildo? Are you from the future, and writing from a place where male and female genitalia are a thing of the past, and I'm totally off the mark?
I'm going to take a stab in the dark and suppose you are a woman asking me about receiving/engaging in anal sex with your man. I apologize if you are a time traveler and this answer is worthless to you. My first question would be, dude, have you asked him? Chances are he will offer you a hardy sure, babe lets do it. Most guys are totally down with having a go at anal sex given they're the pilot. It's another opportunity to stick their penis into something warm and tight. That in a nutshell is what drives men to get out of bed, to leave the cave, go to college, shave etc. Men, much like fungi, love and seek warm, wet, dark holes.
However, if your man has already put his foot down on butt sex, than it's likely for one of two reasons, neither of which I necessarily agree with, but none the less could be blocking him from backdoor loving you.
1. He is squeamish about things like tushie smell, the prospect of your poop on his pepper, desecrating your body and the "purity" of traditional vaginal sex. Also, he was taught in some religious sect or talk with grandma that anal sex is for evil devil worshipping perverts.
2. He is frightened that he might enjoy anal sex too much and to him this will mean he is totally gay. Given his logic, he doesn't want to mess with that possibility. He thinks your butt will be the gateway butt to a life of homosexuality. This he can not bare.
Like most things in life, this can all be sorted out with candid conversation and a tube of KY Jelly. Talk about your sex life and take it slow. In addition, there are plenty of online "tutorials" if you both wish to educate yourselves on the joys of anal sex. I'm thinking more "Johnson and Johnson" guides to sex; as opposed to googling "butt banging" or "anal fiesta IV."
"Men, much like fungi, love and seek warm, wet, dark holes."--- This made me laugh so hard!
Again, assuming that you want to be on the receiving end (which is a huge assumption, because I can't imagine why, if you're female, you'd want that), there's a third possibility:
He's not into it.
Maybe he's tried it before, and discovered that it isn't all it's cracked up to be. Evolution has formed the vagina to be a pretty perfect home for enveloping penises. Most straight males I've talked to on the subject agree that anal entrance is attempted for the novelty, and once that wears off, they go back to old faithful.
But it seems way more likely that you're asking to be allowed into your man's glory-hole. I can sorta see the appeal. If that's so, then, as with everything, there is one simple rule:
No means no.
Don't pressure him into it. If his answer is no, the subject is closed.
As a female, I can tell you that anal honestly feels thrilling. Yeah, it's exciting to have someone pounding you vaginally, but for me, it's SO much more pleasurable to have someone at my back door. The vagina and anus share a wall of nerves that feels great from the other side. :) Don't knock it until you try it. And guys love it - at least, every guy I've been with.
Tried it. It was awful in multiple ways. But then, in my case, there were other reasons why it probably would have been particularly bad at the time.
Diff'rent strokes, I guess.
my boyfriend miguel likes it when i tickle his glory hole with a pickle