Dee Dee is smitten with her new beau, but the romance sours when she learns that he and Mona dated in high school. Although Mona gives her blessing to the union, she soon changes her mind.

When Dee Dee befriends Spencer, Mona becomes concerned that her sister is stealing her best friend. Meanwhile, Mona leads Dee Dee and Spencer into believing she is still dating Brian the exterminator even though he hasn't call her after their very hot date.

Phyllis announces that she has been seeing someone for the past month. She reluctantly agrees to bring her boyfriend, Earl, to the apartment to meet the girls. Earl is handsome, sweet and romantic, and leaves everyone (including Big Dee Dee) sufficiently impressed. Dee Dee sees Earl at a restaurant with another woman, and learns that it is his wife. Mona and Dee Dee try to break the news to Phyllis, and are stunned to discover that she already knew that Earl is married. She believes that he is separated and about to get a divorce. Mona and Dee Dee try to convince her to stop seeing him. Meanwhile, Spencer discovers that being attached has suddenly made him virtually irresistible to other women.

Mona, a self-reliant record executive, is set to move into the penthouse apartment that her father has always promised her. But her plans of getting settled in her new apartment soon come to an end when she learns that her spoiled half sister, Dee Dee, and Dee Dee's overbearing mother also lay claim to the apartment. The sisters' relationship is further strained when Dee Dee inadvertently attracts a man whom Mona was pining for.

In an effort to make up her mind once and for all, Mona decides she wants to date both Chase and Lorenzo. When both men agree she finds herself more confused than ever. Dee Dee meets a new guy but when Brett tells her the relationship won't stand a chance, she sets out to prove him wrong. Meanwhile, Spencer meets a new woman and when she invites a friend to join them on the date he thinks his dreams have come true.

Mona continues to bristle at Spencer's relationship with Naomi, who seems strangely reluctant to become romantically involved with him. Mona's mother and friends encourage her to put her personal feelings about Naomi aside and help Spencer. Naomi later divulges a surprising secret to Spencer. Dee Dee has difficulty following her boss' edict to drop a female tennis player with limited marketability. Big Dee Dee gets a potential break in her acting career when she's given a callback for a low-budget horror movie.

Dee Dee's cousin Barbara comes to town for Big Dee Dee's baby shower, and stays with Mona because there is no room at Dee Dee's place. Mona is furious to learn from Barbara that Dee Dee shared things that Mona had told her in confidence about the effect her mother's bitterness has had on her feelings about marriage. Mona gives Dee Dee the silent treatment, but later has a talk with Phyllis about her fears. Big Dee Dee dreads the shower because she knows the guests will insist on touching her belly. Meanwhile, Spencer gets a makeover from Adam and some friends in the hopes of impressing Camille's social crowd.

Spencer's cousin Chauncey begins working in the mail room at the record company and blabbing everyone's secrets. He recalls the time in college that he walked in on Spencer and Mona apparently in the midst of a drunken tryst, creating friction between Spencer and Camille. The story prompts Mona to confront her feelings for Spencer, as she wonders if the reason she has been so jealous of his girlfriends is because she wants him for herself. Meanwhile, Dee Dee creates a mold of her mother's pregnant belly--which Big Dee Dee hates.

In an attempt to win Mona's respect and stop living off her father's largesse, Dee Dee takes a job as a waitress. Meanwhile, Phyllis persuades Mona to give a video-dating service a try.

Dee Dee attempts to get closer to Mona by planning a joint birthday party, reminding Mona of bad memories from their childhood. Meanwhile, Dee Dee unwittingly reveals that Phyllis lied to Mona about things that have shaped her world view since she was young; and, as a birthday gift, Phyllis finally tells Mona the truth.

Mona's music-video shoot for a rapper may end in disaster when he refuses to leave the dressing room—until he meets Dee Dee. While Mona is pleased with the rapper's newfound enthusiasm for the shoot, she soon begins to worry that he's using Dee Dee.

Spencer continues to shower Naomi with affection after she reveals her HIV-positive status. However, her newfound confidence prompts her to dump him and seek to profess her love for another man. Mona tries to comfort Spencer, but he rejects her for failing to back him throughout the relationship. Dee Dee agrees to join her new actor boyfriend in a reality show, and winds up humiliated. Charles is surprisingly supportive when Big Dee Dee is asked to do a nude scene in her film debut.

After another failed relationship, Mona decides to focus on her career for a while. She is determined to help Zora, a promising young singer, secure a contract with the record company. Zora mistakes Mona's efforts to boost her confidence for romantic interest and develops feelings for her. She confesses her crush to Adam, who keeps the news to himself so that he can watch the sparks fly. Mona struggles to come up with a way to handle the situation without hurting Zora's feelings. Meanwhile, Dee Dee dates a man who pays way too much attention to her feet.

Mona tells her friends and family that she doesn't want to celebrate her birthday, as she would rather spend the day alone in quiet reflection. However, she soon becomes extremely bored. She is relieved when Big Dee Dee shows up, although she has actually forgotten Mona's birthday and is just there to see Dee Dee. The two go down to the laundry room in pursuit of Big Dee Dee's dog, and wind up trapped when an earthquake hits. They share a picnic lunch and have a revealing talk about their relationship. Meanwhile, Phyllis tracks down Charles to try to convince him to help buy a car for Mona's birthday, and they wind up stuck in an elevator. The earthquake also traps Dee Dee, Adam and Spencer in an upscale store as they shop for Mona's gift. Everyone is embarrassed when Spencer has a panic attack after the earthquake.

Dee Dee takes a pregnancy test, although Mona feels that she might be overreacting (her period is only a day late). Before Dee Dee can check the results, her mother bursts and demands to use the bathroom. Big Dee Dee also takes a pregnancy test, which turns out to be positive. She is startled, but she and Charles quickly accept the news. Big Dee Dee gets to rub her pregnancy in the face of Phyllis, who had believed Big Dee Dee was going through menopause. Mona is upset to realize that Spencer has been seeing Camille for some time, but hadn't confided in her. He claims that he wanted to keep quiet until he knew the relationship could last. Phyllis chastises Mona for letting ""her"" man get away, while Adam refuses to believe that Spencer is over Mona. He insists that he is happy with Camille, adding that Mona would never want him anyway. Mona patches things up with Spencer and says that she is very happy for him.

After Dee Dee loses her old room to the baby and Big Dee Dee misses several appointments, Dee Dee begins to worry that the baby is forcing her out of her parents' life. She suffers from so much stress that she has a breakdown and hears a doll talking to her. Mona recommends that she make an appointment with Phyllis to discuss her problem. She says that she feels as though she is the only one who is worried about the way the baby will change her life. Phyllis assures her that her reaction is perfectly natural and that she should air her concerns with Big Dee Dee. Before she gets around to it, Big Dee Dee admits to her own anxieties about the child's birth, and thanks Dee Dee for her support. The conversation reassures Dee Dee about her importance in her mother's life. Meanwhile, Spencer continually cancels on Mona because of plans with Camille. She looks to Adam to take his place, but Adam isn't too thrilled about this.

Aspiring politician Ron Brown shows up at Mona's door in search of votes, and takes a liking to her. Phyllis quickly pushes him to ask her out, and they agree to a date. Mona then learns that Big Dee Dee recently arranged a date for Dee Dee and Ron, who have been friends since childhood. The sisters are unsure about dating the same man, but their mothers insist that it will be all right (as it is unlikely that both will be compatible with Ron). Phyllis and Big Dee Dee treat the whole thing as a personal competition. Mona and Dee Dee like Ron, but decide that he isn't worth the potential damage to their relationship. They agree to do the ""mature"" thing and stop dating Ron, but each keeps seeing him behind the other's back.

Dee Dee and Big Dee Dee plan a ""surprise"" party for Charles and Big Dee Dee's 24th wedding anniversary. While putting together a slide show, Dee Dee discovers that there are very few photographs of Mona with their father. She feels sorry for her sister and makes several attempts to cheer her up (first creating fake photos of the two, then trying to set up a lunch date for Mona and Charles), but only angers her further. Mona explains that she had accepted the fact that she and her father didn't have the closest relationship, but Dee Dee is inadvertently opening the wounds. Phyllis produces evidence that proves Charles wasn't quite as distant as it seems. Spencer develops an attraction to Camille, a photographer working with Delicious Records artists. Adam constantly tries to alert Mona about Spencer's feelings for her. He finally tells her the truth, but they discover that Spencer is involved with Camille. Meanwhile, Dee Dee becomes annoyed when her ""summer fling"" starts to get

After hiding the relationship for a month, Dee Dee reluctantly introduces Carter to her parents. They are surpisingly supportive. However, Big Dee Dee immediately goes to Mona and pleads with her to try to sabotage the relationship, as she and Charles believe that Carter is completely wrong for Dee Dee. Dee Dee is furious, and winds up surprised by Carter's reaction to the situation. Meanwhile, Kai provides Mona and Spencer with an assistant, who livens up the office but doesn't seem to do any actual work.

Dee Dee is furious to discover that Mona has become friends with Dee Dee's rival, Stephanie Seymour, after meeting her through a work event. Dee Dee insists that Mona should dislike the same people that she does because it is her duty as a sister. Mona tricks the duo into having tea with her in the hopes of getting them to make peace, but things do not exactly go the way she had planned. Meanwhile, a rejected applicant for the talent search refuses to take no for an answer.

Mona and Phyllis attend Thanksgiving dinner at Big Dee Dee's, where Mona's grandmother is the guest of honor. But Dee Dee becomes jealous when she learns the older woman showers Mona with affection. Meanwhile, Phyllis and Big Dee Dee make a deal; and Spencer blurts out one of Mona's secrets to her mother.

Dee Dee persuades Mona to attend a banquet that's being held in honor of their father, but the experience reminds Mona that she's the odd one out within her dad's ""new"" family.

While at a club with Spencer, Mona meets the hunky Miles. They hit it off, but their budding romance quickly trips up over matters of taste: For one, she enjoys Dawson's Creek, while he prefers BET. After a night on the dance floor, where Mona displays her lack of rhythm, Miles breaks up with her for not being ""black enough."" In an attempt to win him back, Mona remakes herself into what Dee Dee calls ""a Nubian disco queen.""

Dee Dee begins work as a sports agent, but clashes with a cocky co-worker. They are both upset when their boss forces them to work together to bring in a hot football player. Meanwhile, Adam recommends that Mona and Spencer follow his lead by signing up for an online dating service. They decide to write each other's profiles after having difficulty completing them on their own.

Mona tries to comfort Dee Dee after Carter appears on a talk show and says that he is seeing someone. When she later discovers that Dee Dee and Carter have secretly reunited, an angry Mona declares that she will not help Dee Dee pick up the pieces after the new ""casual"" relationship fails. Meanwhile, Spencer tries to get into photography in the hopes of getting rich; and Dee Dee and Big Dee Dee face a crisis involving their hair stylist.

Mona becomes upset when Kai repeatedly refuses to give her credit for the Fast Track contest in interviews. Mona, at her family's urging, tries to seize some of the credit for herself, with disastrous results. Meanwhile, Big Dee Dee gets in touch with her agent so that she can resume her acting career. She winds up playing second fiddle to Coco in a dog food commercial.

Kai reluctantly agrees to give a shot to Spencer's friend RJ Jackson, a talented and successful singer with a reputation for partying. Spencer has difficulty reining in RJ, and must resort to desperate measures to get a track recorded before the deadline. Meanwhile, Big Dee Dee decides to return to the stage after helping Adam prepare for an acting showcase.

Mona realizes that she needs to slow down her relationship with Chase after they start spending so much time having sex that it begins to affect her job and other aspects of her life. Dee Dee plans a "legends ball" on behalf of her mother (who is depressed because of her floundering acting career), but finds that none of the invited guests want to attend. Spencer buys a gigantic new truck that soon leaves him financially strapped because he can't afford gas.

Dee Dee has difficulty finding a job after graduation. After she announces plans to return to school, her fed-up father not only cuts her off, but orders her to pay back all expenses accrued since her 21st birthday. Mona begins dating her handsome and charming new neighbor, Lorenzo, but her insecurities stand in the way of the relationship. Spencer changes his wardrobe in the hopes of getting people to take him more seriously.

Dee Dee organizes a singles mixer at a local club. She bristles at Mona's claim that she only dates a certain type of man (well-groomed and upwardly mobile), and tries to prove her wrong by picking up a tough guy named Keno. She takes off with him on his motorcycle and joins him at a bar, where she rides a mechanical bull. She has a good time exploring this new side of herself--until she runs into a very angry woman who claims to be Keno's girlfriend. Mona and Nick crash the mixer and meet up with his ex-girlfriend, Raquel. Mona is disturbed to discover that Raquel is her dead ringer, and fears that Nick is just with her because of the resemblance. Meanwhile, Dee Dee must actually care for Drew herself after firing the nanny. She is mortified when she must turn to Phyllis for help when her son will not stop crying.

With Drew's christening approaching, Mona and Dee Dee vie for the right to be their brother's godmother. They grow increasingly competitive as they buy him gifts and try to impress Charles and Big Dee Dee. While driving home from a shopping trip, Dee Dee takes a cheap shot at Mona when she brings up the fact that she is only Drew's half-sister. Big Dee Dee is appalled by this statement and urges Dee Dee to apologize to Mona as soon as possible. Meanwhile, Phyllis tags along to church with Mona and Spencer and begins making a play for the handsome widowed pastor. She soon finds some unexpected competition in the form of a very forceful church member who is just as determined to make the pastor her man.

Big Dee Dee, Phyllis, Mona and Dee Dee make plans to spend Mother's Day together at a brunch/concert. Mona is surprised to learn that Dee Dee plans to get Phyllis a present. She scrambles to find something appropriate for Big Dee Dee. Big Dee Dee grows tired of receiving gifts meant for the baby and is thrilled with Mona's gift of Louis Vuitton luggage. This upsets both Dee Dee and Phyllis, who had already bristled at the fact that Mona was spending more time with Big Dee Dee. Phyllis starts complaining about her gift (even though it is the watch she repeatedly requested). Dee Dee suddenly gives Phyllis a diamond bracelet in an attempt at one-upmanship. At the brunch, Phyllis and Big Dee Dee discover that their gifts may not have been as thoughtful as it seemed. Everyone is at each other's throats, until the bathroom attendant, separated from her family for the day, forces the mothers to see the error of their ways. Meanwhile, Charles and Spencer watch Drew while the women are

Dee Dee runs into Clay, her ex-boyfriend with the foot fetish. He tells her that he has gotten treatment for his problem, and asks to start seeing her again. Dee Dee is not interested, but Mona and Big Dee Dee convince her that he is a good guy who deserves another chance. Dee Dee follows their advice and is very happy with Clay. However, Mona and Big Dee Dee catch him rolling around half-naked with a bunch of Dee Dee's shoes. He begs them not to share this with Dee Dee, but quickly has another relapse. Meanwhile, Spencer may lose his job after he fails to clear samples on a new album. The original artist, funk singer Otis Wright, has no interest in allowing the use of his music. However, Spencer catches a lucky break when Otis develops a mutual attraction with one of his biggest fans, Phyllis.

After Ray says that he cannot make the Thornes' Thanksgiving dinner due to work commitments, Spencer invites his mother (who is unaware of his reunion with Ray) to fly in for the holiday. However, Ray arrives at the gathering unexpectedly. Spencer's mother constantly argues with Ray and lashes out at Spencer for keeping secrets from her. Phyllis and Ray decide to break up because he still has some lingering feelings for his ex. Meanwhile, Dee Dee pushes Mona to be more honest with their father about her frustration over his limited involvement in her life.

Mona fears that her new man is too good to be true, so she searches for his hidden major flaw. Dee Dee accuses her of being paranoid, but soon discovers that Mona has reason to be wary, as Roland is living out of his car. Big Dee Dee considers having her breasts enlarged, but winds up receiving comfort from Phyllis as she faces a potential health crisis. A bored and desperate Dee Dee puts on a show for an apparent peeping tom in the building across the street from her apartment.

Mona grows very nervous about her role in selecting the Fast Track winner, especially after Kai decides to step aside and leave the decision about whom Delicious will sign to Mona. Dee Dee urges Mona to have confidence in her abilities. After a workshop, studio session and live showcase, Mona, Jimmy Jam and Terry Lewis select the winning act.

After Mona complains about being bombarded with demos and Spencer's refusal to pay back his debts, Dee Dee encourages her to become more assertive and not let people take advantage of her. Mona follows her advice and re-possesses Spencer's new jacket and shoes. However, Dee Dee's words come back to haunt her when her sister refuses to listen to a demo by Dee Dee's handsome and influential new boyfriend. Meanwhile, Phyllis enjoys being pampered at an expensive shoe store after a salesgirl mistakes her for Big Dee Dee.

Mona refuses to go along with Spencer's desire to sign a talentless but popular heiress to Delicious. He infuriates her by finding a way to pitch his proposal without her approval. Meanwhile, Big Dee Dee is jealous when Phyllis teaches Dee Dee a series of money-saving tips to help her adjust to her new financial standing.

After Dee Dee starts a grease fire in her apartment, a handsome fireman rescues one of Phyllis's cats from the building. Phyllis eagerly tries to set him up with Mona, but the man winds up being attracted to Phyllis. Meanwhile, Adam falls into a funk over his friends' successes, especially after learning that Spencer has purchased his own home. Spencer tries to cheer Adam and convince him to set some goals for himself.

Dee Dee tricks Mona into joining her at a singles weekend at an exclusive new hotel. Mona meets a handsome bartender, but Dee Dee repeatedly tries to steer her away from him, claiming that she has her best interests in mind. Spencer and Adam also attend the event, thanks to Adam's successful friend. Spencer enjoys the perks of hanging out with Adam and his friends, but is surprised to discover that people believe he is also gay. Meanwhile, Big Dee Dee convinces Phyllis that her presence in the building and relationship with Glen are driving Mona away.

After Dee Dee complains about Brett's sexist treatment of her, Charles and Spencer show up at the office to confront him. Their actions backfire, as everyone at the office begins thinking of Dee Dee as a "daddy's girl." Dee Dee, with encouragement from Mona, Phyllis and Big Dee Dee, sets out to prove herself by trying to land a successful athlete who has refused to sign with any agent.

After throwing together a baby shower for Neil and Janet, Dee Dee becomes concerned by the fact that she is the only person in attendance who is not attached. She begins to question her life and decision to pursue her career so aggressively. Meanwhile, Mona worries that her lack of maternal instinct could have a negative effect on her relationship with Chase. She tries spending time with Drew, and receives some advice from Big Dee Dee.

Mona convinces Chase to hire Lorenzo as a pastry chef at City Sonoma. Chase become furious with Mona for not informing him that Lorenzo is her ex-boyfriend. Phyllis is bed-rested after taking a fall in the hallway of her apartment building, which Big Dee Dee and Charles happen to own.

While Chase is out of town on a business trip, Lorenzo shares with Mona that he still has feelings for her. Although Mona remains committed to Chase, she begins to fantasize about Lorenzo. Meanwhile, Dee Dee tries to convince Big Dee Dee and Charles to financially support Adam's new career as a stand up comedian. Big Dee Dee quickly agrees when she finds out she can produce his stand-up set.

Mona discovers everyone is hanging out with Chase behind her back. Gus leaves town, leaving Brett in charge of the office. But when Dee Dee's colleagues tell her he is envious of her new responsibilities she tries to keep the peace in the office. Meanwhile, when Mona begins to see a therapist she realizes she has to take control of her life.

When Dee Dee becomes frustrated with Neil because he does not seem interested in getting intimate, he divulges that he is celibate. Meanwhile, Mona is under pressure at work and takes up smoking again, but she is too embarrassed to admit it and tries to hide it from her family.

Spencer thinks that he has gotten a girl pregant and Dee Dee and Mona force him to get an AIDS test.

While Mona struggles to find work after poisoning her reputation in the record industry, the reporter whose article got her fired tries to make amends and sets up a meeting for Mona to plead her case to Big Phat Slim Jim, the artist she disparaged, in hopes of getting her old job back. Meanwhile, Mona's family and friends offer their encouragement and support in their own special ways during her difficult job search.

In a strange reversal of fortunes, Dee Dee's charmed life seems to hit an unlucky streak at every turn while, ironically, the usually pessimistic Mona's life becomes auspicious from one moment to the next. When Dee Dee starts doubting herself after failing her assigned mock-court competition at school, with Mona's help she manages to regain her waning confidence by confronting a crooked businessman.

For Mother's Day weekend, Big Dee Dee and Dee Dee vacation at an exclusive spa. Not to be outdone, Phyllis and Mona do the same, and end up in the room next door. The weekend quickly goes from weird to worse when Dee Dee blurts out that she wishes her mom was more like Phyllis.

Camille sets up Mona on a date with her best friend, the handsome and engaging Carlo, whom she hasn't seen for years. Mona is thrilled when she and Carlo hit it off, and believes he might be a long-term boyfriend prospect. However, Carlo is actually in love with Camille and wants to pursue a relationship with her. Meanwhile, Dee Dee and Big Dee Dee are desperate to find out the sex of the baby, while Charles insists that they should wait until the birth. The women try to go behind his back to the doctor.

Mona tries to find time alone with Nick, but her mother and Dee Dee can't seem to get the message. Dee Dee's longtime friend Aurora comes for a visit. She was once extremely obese, but has now experienced a dramatic weight loss, thanks to a gastric bypass surgery. She is not used to having men pay attention to her, and Dee Dee worries about the fact that she seems to overreact whenever someone pays her a compliment. Meanwhile, Spencer tries to get over his break-up with Camille by hooking up with virtually every woman in the Bay Area. Dee Dee tries to keep him away from Aurora, as she believes she could get hurt. Adam is upset when everyone begins to bail out of his big ""28th"" (or 27th, 26th, 25th or 23rd) birthday bash in Las Vegas. Spencer and Aurora wake up naked and hung over in a Vegas hotel room, and Adam tells them they got married. A panicked Dee Dee, unable to find Aurora, interrupts Mona's romantic weekend with Nick. They learn what has happened to Spencer and Aurora

The Thornes' plans for a well-orchestrated C-section go by the wayside when Big Dee Dee goes into labor three weeks earlier than expected. A panicked Dee Dee turns to Mona for help. Mona handles the situation beautifully, helping Big Dee Dee get to the hospital and deal with complications such as an overly perky new nurse; and having the delivery handled by a pregnant doctor who is a week past her due date and more than a little bitter about it. Dee Dee begins to resent Mona's calm demeanor and helpful nature, especially after Big Dee Dee sends her daughter out to find a doctor and asks Mona to stay in the room. Meanwhile, Spencer and Phyllis try to track down Charles, who has gone away to a men's retreat at an isolated cabin. Mona finally confronts Dee Dee and eases her jealousy by reminding her that she can simply lie and pretend that she was useful at the birth. Charles arrives just after Big Dee Dee gives birth to their son, Drew Christian. Big Dee Dee comes up with an ""offi

Kai orders Mona to exercise some of her new power as a vice president by firing Adam. She feels terrible about doing this to her friend, but acknowledges that he isn't a very good receptionist and finally breaks the news to him. Adam is furious and refuses to take any of her calls. Mona later learns that Kai never wanted her to fire Adam (who constantly sucks up to her and shares all the gossip), and had him confused with someone else. Mona must track down Adam at his new job handing out sausage samples at the mall and convince him to put aside his pride and return. Meanwhile, Big Dee Dee hires an accomplished and extremely hot male nanny to care for Drew, but realizes she must let him go after she and Dee Dee spend all of their time fantasizing about the man.