8 Simple Rules - Season 3 Episode 21 -

After turning down Bridget's request to throw a ""harmless"" after-prom party in a hotel room, Cate decides to throw a school- sanctioned party at the house – which totally embarrasses her kids. Meanwhile, Kerry tries to make a political statement by inviting a girl to the prom, and Rory is overjoyed when a hot senior asks him to the dance.