Ass her, I mean ask her. Same as anything else, learn exactly how to do it so she enjoys it as much as you do. Then work it into your love making sessions slowly.

Women will do it if they dont think its too painful. First bring it up when discussing babies (which SHE will must likely bring up). Since you hate the topic and want to avoid it like the plague (but will probably lie and give her a wimpy appeasing answer), do the unexpected (which women love) and say something to the effect of "Do you have any idea how painful childbirth is? Women beg to be killed during it. Its the most excruciating pain you would feel in your life. I never understood why women want to go through that. What are all women closet masachists or something?" Thats when you turn this dreaded conversation (which men feel they must cave into and can NEVER win) around to YOUR advantage. If she never had babies offer her a chance to experience just a minute taste of the agony and say this "Look ALL women SAY they want babies but are YOU tough enough to go through the agony of childbirth?" Then offer to HELP her in making that decision. Say "I'm going to do you a favor" (say this non shillantly like its no big deal, do not hesitate or appear less than confident), "I'll let you experience 1/100th of the pain you will experience through childbirth." Then don't say anything just let there be akward silence. Being a typical coureous woman who requires an IMMEDIATE explanation, she will most likely ASK YOU what you have in mind. Then confidently learn forward, look deep into her eyes, put your hand on her hand and REASSURINGLY say "next time we make love, I'll do you the favor of fucking you in the ass". When she gasps and says "oh no you won't". Then shrug your shoulders and say "well you won't have a clue what childbirth will feel like. If you can't even handle the "pain" of going shit in reverse, how will you even be remotely prepared for the long, drawn out agony of chilbirth?" Then let her change the subject. Next time you have sex, rub her butthole to get it used to feeling something up againt it (she WILL remember the conversation). don't push it, do some other foreplay then when you have her dogstyled rub your lubed up thumb on her butthole to loosen it up (she will get curious), slowly slide your thumb in, paying attention to her reaction. If she sqeezes or pulls forward leave the thumb where it is, let her relax before proceeding, but dont pull out. That will let her know you're the boss, but a NICE boss. Then proceed when shes relaxes her anus. Get your thumb All the way in, let her relax then proceed in and out with your thumb. Now she will be proud of herself for her toughness and will be wanting to experience the REAL thing. Go for it but be a NICE guy and use enough KY. Its the strangest thing and seems unusual considering this vaginaman country we live in but you will notice once you sodomize a woman, no matter how "new feminist" she is, she will be hesitant about making decisions FOR you in the future. She will be unusually punctual for dates. She will generally treat you with respect, almost as if she FEARS you. My only explanation for this almost alien infiltration type behavior is this , how can anyone wear the pants in a relationship after getting thouroughly fucked in the ass? One more thing I forgot - if the woman ALREADY has children (you're a damb ass if she does, SHE WILL HAVE YOURS TOO and you'll be paying child support for YOURS AND HERS) just tell her anal is a snap for her since she has already endured the torture of childbirth and you feel "cheated" that she wouldn't give you that pleasure when it wouldn't even "hurt" her since shes SUCH a tough woman already. I would mention that its the least she should do for you unnecessarily putting up with the aggravation of her children. If she finds that insulting, feel grateful when she dumps you and stop being a pussy and dating single moms.