Casey's grand-big sister, Kiki, is back for her wedding and all of the ZBZ girls are invited. Max proposes to Casey. With Andy out of town, Jordan brings Rusty around with her as she picks up flowers for the wedding. When they find out the order was never place, they come up with a plan that puts both of them in the hospital for the same allergy. At the bachelorette party, Rebecca finds herself kissing the openly gay Robin.