Open relationships?

Has anyone ever been in one or considered one? My boyfriend and I are currently discussing it and are determining what it means for us. We're both only 20 and know we want to be together for the rest of our lives, but we realize we're so young and may want to have other sexual experiences. So we aren't into polygamy. I'm a very sexual person and am able to tell the difference between making love and sex so this is an exciting new journey in our relationship. Wasn't sure if there were any other ladies who were on the same journey as me! ❤️