Sex with same sex and opposite sex

So I have a guy best friend and we basically liked to have sex a lot.. Recently we've tried to stop because we are just friends and we have been having too much of it and just don't have the time for it anymore.. I honestly can't imagine myself with another guy but I do still get sexual frustrations because I'm not getting it from him.. Am I wrong of wanting to get pleased and having sexual relations with another girl? Honest opinions.