The new mom gets ready to return to her old zip code.

Tori Spelling and hubby Dean McDermott put on their party clothes to celebrate the success of "Tori & Dean: Home Sweet Hollywood," and ET got the latest on motherhood now that Tori has 16-month old Liam and not-quite-two-months-old Stella.

"She is a lot more vocal than he is," Tori says of her baby daughter. "She is like a girl. We want what we want when we want it. He is adapting well."

Tori looked great in a black, spaghetti-strap dress, but says she hasn't been able to start a weight-loss program yet because she is breastfeeding. "I can't diet yet and I had a C-section, so I can't exercise yet. All I can say is [the weight loss is due to] breastfeeding, luck and a 16-month-old who is running everywhere."

As for her upcoming role on The CW's "90210," she says, "My first reaction was, 'It is about time.' The fans have been asking for it for years. To be honest with you, my dad always intended to do '90210: A New Generation,' but it never happened. So the fact that it happened, he would be proud."

Tori will be reprising her role as Donna when she returns to the zip code, but adds, "I don't know much about my character. I have been in talks with the producers. I definitely want to stay in fashion. We did talk about a boutique, but I don't think it is firm yet."

Of the new cast, she knows Lori Loughlin and Rob Estes, both of whom starred in the Spelling TV shows, "Summerland" and "Melrose Place" respectively, but she doesn't know any of the young cast members.

"I think it is a smart idea to blend old and new because it makes it versatile," she concludes.