In the next "90210", Adrianna and Navid announce plans for their future to their friends but don't receive the reaction they were hoping for. To support their friends, Naomi, Annie and Silver throw Adrianna a bridal shower, while Dixon, Ethan and Liam surprise Navid with a bachelor party at a burlesque club.
Now that Naomi's big sister, Jen (Sara Foster) is back in town, the two decide to live together and turn to their scandalous father to release Naomi's trust fund in order to support their wild spending habits. Ryan and Jen bump into each other at the Peach Pit and get wrapped up in a conversation of lies before deciding to have dinner together.
Called "The Party's Over", the episode airs May 5.