Complex sentence: CJ (voiced by Linda Cardellini) is a cloud girl who first appeared in the episode "Yes Dude Yes", in which Mordecai started dating her after thinking Margaret was engaged.
Split into simpler sentences: CJ (voiced by Linda Cardellini) is a cloud girl and Mordecai's girlfriend. She first appeared in the episode "Yes Dude Yes", in which Mordecai started dating her after thinking Margaret was engaged.