Sara reunites with an ex (Pete Wentz) who causes a change in her personality. Ben steps in to help Sara but ends up falling into the same trap with his ex. Elsewhere, Aaron tries to impress a woman with his money and shocks Riley in the process

Aaron worries he had a negative impact on a woman he mentored in junior high who is now a porn star. Elsewhere, Sara’s colleague bribes her to help him impress Riley; and Fitz and Ben have a run-in with a hospitalized friend’s attractive girlfriend

The gang go to Louisiana to support Sara while she attends her sister’s baby shower following an argument. Elsewhere, an intoxicated Aaron gets separated from the group during Mardi Gras celebrations and finds the courage to try something new

Ben reunites with an ex who’s suffering short-term memory loss. Elsewhere, Fitz plans to set his mother up on a date but is surprised to learn she doesn’t need his help; Riley’s new love interest has an unusual fetish.

The guys argue over a girl during a night out designed to cheer up Aaron. Elsewhere, Sara tries to keep up with Riley at a party but finds that her reserved nature clashes with Riley’s wild lifestyle.

When Sara starts dating a co-worker, she and Ben bring their physical relationship to a halt; Aaron realizes he is taking his relationship with Riley more seriously than she is.

Two best friends, Sara and Ben, carry on a casual physical relationship as they search for love; when Ben needs a date to his sister’s wedding, Sara worries the arrangement is too serious.