Most of you are ignorant! If you crap a big turd, does your anus get huge? No! Its shrinks back like it was before!

She will not have a problem holding her crap in or being incontinent. Nearly 1/3 of women have had anal sex and their crap isn't dripping out of their rears... Do you mean the size of her butt as in the size of her cheeks? The answer is no. However, if by butt you mean her anus, then yes, it will become stretched out. Congratulations if u have a wife who's into anal, I'm marrying the first girl that likes it yes it can. not only that, it can cause fecal and gas incontinence where she may not be able to control the passage of gas or feces. It will stretch & possibly tear the hole itself, bad idea but plenty of guys like it.

Wanna find out ??bend over & when you get up we will see if you anus size has increased then you can relay this to your wife.

Ready??? I didn't notice any difference in your wife's butt. Felt the same to me. Your granny didn't mind either! LOLOL yea we know what you mean, yes. can cause prolapse of the rectum. leave her alone.

better yet, bend over and shove a pop can in yours over several weeks and see if you develop any problems it will relax her anal muscles and she might have trouble holding in her bowel movements. but the fleshy part of her butt, no it wont make any difference. No, it won't... No!

Please use a comdom for backdoor use though. ...and if your wife won't let you....you could always practice on me! No.....it will not.if it was true,there would be a lot of fat butt people,moving around,I mean a lot of people. lol ! It can increase the size of your butthole, but I don't know about the butt itself