A daughter is keeping a huge secret from her mom, and a mother intervenes in her daughter's love life. Then, a father is shocked by his daughter's plan to bring Mom along on her 21st birthday.

Kathy causes strife in daughter Cristina's marriage. Cher and Dawn hide a secret from the family. Sandra and Mariah get plumped in Las Vegas. Sunhe worries about getting left behind in Angelica's new life.

Sandra hijacks Mariah's 21st birthday. Sunhe wedges herself between Angelica and Jason. Cristina and Kathy upset Carly at Carlo's birthday party. Dawn wants to be included in every step of the birth of Cher and Jared's child.

Kathy and Cristina break Carly's trust. Sandra and Mariah repair their relationship and make plans to go on a double date. Dawn attends Cher and Jared's sonogram and takes over the appointment.

Sandra and Mariah go on a double-date. Angelica takes a break from her boyfriend to go away with her mom. Cristina takes Kathy for a breast implant consultation. On her birthday, Dawn helps Cher move and make room for the baby.

Sunhe joins Angelica to break things off with Jason. Jared is upset when Dawn surprises Cher with a Lamaze class. Kathy undermines Cristina's husband's plans for a communion party.

A proposal comes between Angelica and her mother, and Mariah sees how far she can push things during a sexy photoshoot. Then, Cher's mom feels left out of gender reveal party planning, and Cristina and her mom face her in-laws.

Kathy and Cristina deal with fallout from the party. Angelica goes behind her mother's back. Dawn learns that she isn't the first one to know the gender of Cher's baby. Mariah and Sandra face backlash after their sexy photoshoot.