Anal ... once a very taboo subject but now much more common and lets me honest if done right a lot of fun. Whether its toys, fingers or sex it's something that takes time effort and trust. If done wrong it can be very off putting for for the receiver for their entire sexual future so please please take some time and have some fun with the build up to it.
First off... it's not for everyone. if you don't want to do it then you'll tense up and it will not be a pleasurable experience
Anal is for all genders both giving and receiving.
preparation is key...
we have all seen porn of 10" cocks pounding an ass this is not reality for most people but if that's what you are into you can do it. the anus is incredibly adjustable and forgiving the trick is teaching it to relay from external pressure rather than internal pressure. lube and small things like fingers is a great start to this.
now take your time. if you are a guy and you just go hell for leather slamming it in then it may well be the one and only time you get to do it. think about your own anus and ask how would i like to be penetrated. yep that's how you should do it to others.
Every person is different everyone likes different things your communication with things like this is key. the better you talk it through and discuss every aspect of it the better if will be for both of you and you should both have some experience on the receiving end to know what's going on and understand how it feels.
Now to move on a little further, most of us have thought about it and most of us are curious enough to wonder what it would be like even if you haven't done it at all. a large portion of you have had a sneaky finger or similar. that does make you strange. things like this are how you have a good sex life theres no fun in sex if you have already done everything.
If you are worried about cleanliness and mess there is solutions enema kits anal douches etc give everything a good clean before hand. sometimes things are spur of the moment but that's why we have condoms and showers people.
Maybe you are worried it will hurt. If you take your time it shouldn't hurt and ill do my best to describe the feeling as best as i can. There is a discomfort close to pain but still pleasurable at first much more the first time but less of a discomfort as time goes by both in this session and future ones. The discomfort turns to a pressure... a "full" pressure which for many can be incredibly pleasurable and for some women bring on intense orgasms. for men if they git that prostate right at the right time it will be an orgasm like you have never had.
If after all this you are curious but unsure there are kits with different sized toys to build your way up. desensitizing creams and lubes whatever you could need to make this experience as easy as possible just for you desires can help you with.
Everyone's experience is different though. feel free to drop some pointers in the comments below.