i am a very opened minded person, and i like to be freaky in any way possible......... thats why myself and my fianace are together for 3 yrs now, cuz we're that freaky.........lol
but we wanted to try something different.... 3som... idk how this will turn out. but this is something i myself want to try and he does 2.

can some give me an insight plzz..

Make absolutely sure that you both want to do it.

Establish ground rules, cover things that you would NOT like each other doing, if anything. Agree that at any time either one of you can stop it there and then without having to feel bad about it. Find someone who you will not meet in the ordinary course of your life... No friends, maybe meet someone off the internet, you can be specific in what you're looking for and stringent in meeting your criteria.

I guess as with everything discussion and communication is the key... make sure there is genuine desire on both halves and that nobody is just acquiescing to something they dont really want to do.