There is nothing wrong with being in a committed relationship. If you have found the one person you want to spend the rest of your life with, that is fantastic. But being in a committed relationship isn’t for everyone. Some couples actually enjoy changing things up and having different partners. Whether that means they are inviting other people into the relationship or having relationships on the outside; this is what works for them. Making the assumption that all relationships should last forever isn’t the right way to look at things. Perhaps rather than focusing on why threesomes and swinging are considered to be taboo, maybe we should spend some time looking into what makes them right for you.