Many casual relationships establish guidelines or a set of rules.
Robert Sternberg's triangular theory of love offers the type of flexibility that may be suited in helping this type of relationship become successful.
Casual relationships, being a mix between a friendship and a non-romantic sexual relationship, result in the partners facing many challenges in maintaining a working relationship.
The colleges and universities known for a larger alcohol consumption by their students seem to also have a larger number of students participating in casual relationships.
Casual sex are certain types of sexual activity outside the context of a romantic relationship.
Some medical authorities – such as Bonnie Halpern-Felsher, a professor of pediatrics – suggest that teenagers do not view oral sex as "real sex" and use it to remain in a state of "technical" virginity.