Although we receive plenty of messages telling us that casual sex can turn into happy, committed romantic relationships, and that this outcome is preferable to maintaining or ending a casual relationship, these messages are guided by what sells, not what works. What does research say about transitioning from a casual sexual relationship to a committed relationship? Is it common to want a committed relationship from a casual relationship? Is it common for hookups, one-night stands and friends with benefits to turn into romantic relationships? Are romantic relationships that started out as casual sex as healthy and emotionally fulfilling as relationships that were romantic from the start?