Check out this great article about “friends with benefits” relationships from Science of Relationships:
The term “friends with benefits” (FWB) has become part of our vernacular in recent years and public interest in the topic appears to be surging. For example, this year alone brings two major motion pictures devoted exclusively to the subject, No Strings Attached (starring Ashton Kutcher and Natalie Portman) and this summer’s Friends with Benefits (starring Mila Kunis and Justin Timberlake). The concept has also been popularized by the ongoing FWB arrangement between Vinny and Snooki on the Jersey Shore (see here for more on the Vinny/Snooki saga).
One thing all of these media portrayals have in common is that they depict FWB relationships as complicated. Inevitably, somebody seems to get jealous and drama ensues. So does that match up with reality? Are these relationships really that difficult to manage?