This is a euphemistic term for a casual sexual relationship between two – or more – people who, first and foremost, consider themselves to be friends. Unlike most friendships, however, one that has 'benefits' will involve sexual intercourse once in a while. Generally speaking, the term will apply to two single people who hook up from time to time to satisfy their sexual needs without feeling the need to enter into a formal relationship or to develop their feelings for one another beyond what they are. That said, some people who have friends with benefits will start to feel more loving, protective and even possessive so the situation can alter into something more deeply felt in some cases.