Playing House: Keegan-Michael Key goes behind the scenes of season 3's cancer story line
'I wanted to make sure I was representing Jessica's reality exactly the way she wanted it,' he recalls
Playing House wanted to spotlight Jessica St. Clair's 'great new boobs' this season
Season 3 takes inspiration from the co-creator and star's real-life battle with breast cancer
Playing House finale: Kenny Loggins meets Maggie and Emma in exclusive clip
Plus, stars Lennon Parham and Jessica St. Clair tell EW what to expect in the final two episodes
