My boyfriend and i just started to have anal sex, when he enters I automaticaly feel like I have to go number 2. Is that normal?

OMG, me too! I think it's because your ass is really only used for one thing, so when a dick is in it, our body's want to push it out. Also, I always have to "go" after anal. I think it's normal. I never thought it was weird. I've heard of SO many girls who crapped ON guys while having anal, so after sounds good to me!

logically, your ass can't tell the difference between the mass of a dump and the mass of your boyfriends equipment.
of course it's normal.

I am a guy and from my experience of anal (with 3 girls) it is absolutely normal. However, you are not going number 2, it is just a feeling like that --- so dont be worried.

Over time you will get more used to the feeling and it will just feel like pleasurable anal sex, not like a #2. That is when you will both start to really enjoy it as an alternative to regular sex.

Have fun and dont worry about it ---- I guarantee he is loving it!

Your feeling the natural reaction your spinkter muscle will do when something passed through it. Make sure your empy and clean and you should be ok.....lets face it....if your bf get grossed out he has to remember what your asshole was made for.....btw if you are not too happy about it mention to him you should be able to do him too and see if he can take it......have fun and be careful

You will get used to it after a few times and then you will relax and enjoy.

It is very normal to have that feeling.... no worries...

Is normal to have that feeling; if you prefer to play safe then take an enema before anal sex to avoid any surprises.
Your inside muscles will try to "push" out anything that is there, and with more experience you should be able to hold him inside you for longer periods of times. When tou reach to that point you are also going to start experiencing cramps, or a quick contraction of your muscles, usually associated with an orgasm....

Whether its normal or not do you know that that's where the disease begin whether you're clean or not. All of that bacteria could form a disease possibly aids and why would you disrespect yourself like dat or shall i say your body because i mean that's just ridiculous if he cant accept what you give him he dont need nothing else. Of course plenty of other women are doing it, but you are you and not noone else. Do you baby and everything will be a whole lot better.