When Casey's alumni sister Kiki, announces that she is getting married, all the Zeta Beta Zeta girls are invited. Amidst all the wedding frenzy, Max decides it's time to take his relationship with Casey to the next level and decides to propose marriage. Meanwhile, with Andy out of town, Jordan ends up dragging Rusty around town to help her pick up the flowers for Kiki's wedding. When the two discover that the order was never placed, they have to come up with a plan of action which leads to an unexpected common bond. Elsewhere, Rebecca soon finds herself in new territory as she kisses Ashleigh's openly gay big sister, Robin, in one of the bachelorette party drinking game which sparks Rebecca's curiosity in the same sex.