In the second-season opener, Mel has her home renovated, but the construction work does not go smoothly. Meanwhile, Lennox's school puts on a play she wrote, but the audience reaction is not what she anticipated.
Mel and Joe attempt to respect each other's privacy after they have a quarrel about boundaries. Elsewhere, Lennox dreads working on the spirit committee at school, but her attitude changes after she meets the president of the club, Aidan (Cody Linley).
When Mel and Joe walk in on Lennox and Aidan in bed together, they try to steer her away from sex, while Aidan's parents are delighted at the idea of the two being each other's "first." Holly tries to get Ryder to shave for the first time.
Joe thinks that Mel is having an affair with a married man and seeks to expose her. Lennox's friend has a boyfriend, Haskal (Gregg Sulkin), that has been crushing on her and she tries to find the right words to tell Scarlett. Ryder looks for a perfect birthday present for Holly.
Mel punches a person in Ryder's defense, then must think fast when video of the altercation is posted online. Meanwhile, Lennox attempts to befriend a new girl at school, but the girl takes advantage of Lennox's kindness, which dismays Joe.
Mel plans to break up with her boyfriend, but seeks Joe's help in boosting his confidence before she gives him the bad news. Meanwhile, Ryder's girlfriend Holly confides a secret to Lennox and asks her to keep it from Ryder.
Mel and Joe arrange blind dates for each other, leading to an uncomfortable double date for the group. Meanwhile, Lennox decides to start her own blog after being kicked off the school website, but it consumes all of her time, leaving her boyfriend Haskal feeling ignored.
After Lennox breaks up with her new boyfriend, Mel starts dating his father behind her back. Joe tries to teach Ryder a lesson about how to invest in the stock market.
Joe gives Lennox driving lessons without Mel's consent. After Lennox gets into a minor accident, Joe tries to cover it up from Mel. Mel & Ryder are keeping a secret of their own.
During her first visit in a few years, Joe gives Mel's mother, Monica some advice that upsets Mel. Meanwhile, Lennox gets into some hot water when her gym teacher assumes that she is pregnant.
