yes it always good idea to try new thing with other half. but you also have to draw the line at some point. and if your going to try something new for first time should have some rules. since sometimes someone might not liked what you tried out for first time. lets say you try anal sex for first time and she loved it and you hated. how are you going to tell it was not your cup tea or you did not like it. also how are you going say no with out being rude next time she ask to do it again. you should put down rule we try this new thing if someone did not like we will only do it once in awhile or not do it at all. recall this you have to make sure both party's are happy and not just one. since will cause mess in love life or marry life. there has to be line that will not be crossed on any new thing you try since someone might not like it.