Bonnie encourages Christy to pursue Marjorie's charming nephew, Nick, despite the fact that he's been declared off limits.
Christy feels left out when Bonnie and the ladies keep Jill’s pregnancy a secret,
Christy and Bonnie have their hands full when Adam's hard-partying friends come for a visit.
Christy and Bonnie dip back into illegal activities, and Adam questions their morality.
Christy and Bonnie worry about Jill after her cry for help on the anniversary of her mother's suicide.
Christy becomes overprotective and keeps a constant eye on 12-year-old son Roscoe after discovering he's been using drugs and alcohol.
Christy and Bonnie rush to a sick Violet's side, only to find out that having mono is the least of her worries.
Christy and Bonnie worry that Roscoe has a drug problem when Baxter and Candace catch him smoking pot.
Bonnie fears she's become undesirable when she catches Adam smoking pot before sex, and Christy tries to smooth things over between them.
Christy considers giving up her dream of becoming a lawyer when Bonnie's ex-girlfriend, Jeanine, offers her a lucrative job in real estate. Also, Adam is very curious about Bonnie's past with women.
In the fourth season opener, Bonnie and Adam's relationship is tested when he moves in with her and Christy for a few weeks. Also, Christy learns the hard way that it may be a mistake to try and meet men with Jill.