The world hasn't heard much from Jamie Lynn Spears since the 17-year-old "Zoey 101" star confirmed in December that she is [article id="1576746"]pregnant with her first child[/article], a girl due in June. But following her weekend baby shower in the Spears' hometown of [article id="1578525"]Kentwood, Louisiana[/article], Jamie Lynn reportedly spoke to OK! magazine, spilling the beans on how her pregnancy is going, her reunion with sister Britney and her future plans.

According to the magazine, the Spears sisters had not seen each other since October, and when they reunited at the shower on Saturday, they "flew into each other's arms." The party, hosted by mother Lynne Spears at her Kentwood estate, Serenity, was attended by 20 friends, but not the girls' father, Jamie Spears, who flew to Louisiana with Britney on a private jet from Los Angeles the day before.

"It was wonderful to be able to spend time with her and just be girls again," Jamie Lynn said of her time with Britney. "We painted our nails and did stupid stuff, and we had our private time too. To be able to be in the privacy of our own home and just be sisters again was wonderful." When they first saw each other, Jamie Lynn said her big sister just "ran up. She obviously couldn't pick me up. [Laughs.] We gave each other a big hug. It was a really good feeling." The first words the sisters reportedly exchanged were "I love you. I've missed you. It's so good to see you."

As a mother of two youngsters, Britney, 26, was also quick to give her little sis some advice on raising children, telling her that there "are going to be some long nights, but it is completely worth it." Jamie Lynn reportedly said she's already getting a sense of the joy of motherhood by taking pleasure in the kicks she gets from her unborn baby. "It's when she kicks, when you know she's there," she said of the best part of being pregnant. "When she kicks me, I love it. I want to squeeze her already. I do talk to her, you know, like all moms talk to their babies. I just tell her how much I love her."

Father Jamie, a chef, was not able to attend the party, because it was a "girl" thing, but Jamie Lynn said a number of her mother's friends attended. They gave her "all the important stuff I need," which included Dr. Brown's baby bottles, "adorable" clothes and a baby sling. Jamie Lynn described the event as a "nice dinner party" with a "bunch of balloons and a lot of flowers."

The party included a game where guests tried to guess how big Jamie Lynn's belly is by wrapping a piece of toilet paper around it, and she admitted that she's probably gained 20 pounds or more so far and that she feels really "big." She said whatever the amount is, "I'm pretty normal, I think. It's a beautiful thing. I'm not going to worry about gaining weight. I'm just trying to stay healthy. I've been liking chocolate milk a lot. I've been drinking a glass at least once a day."

Along with reading such motherhood bibles as "What to Expect When You're Expecting" and "Motherhood," Spears has had her share of morning sickness, which was so bad during her first three months that she barely gained any weight.

At this point in her pregnancy, Jamie Lynn is exercising by walking around Serenity but, when asked if she's going to hire a trainer after she gives birth to help her get back in shape, Jamie Lynn said she hadn't really decided yet. "I want to get back to my old weight, but you can't work out right away," she said. "I don't want to stay this way. I'll just stick to my treadmill and weights, and I won't eat cheese every day. You don't have to pay somebody a bunch of money to make you skinny again. If you want to be skinny, you have to do it yourself. And I love to swim, so I know I'll be doing a lot of that."

When it comes to the baby's father and [article id="1584193"]Jamie Lynn's fiance[/article], Casey Aldridge, 18, she said, "The dad's influence on a baby is really important. It doesn't matter where they come from or what they do. It's all about how they love the baby. If they love the baby, that's all you can ask." She said Britney "loves" Casey, who she has met a number of times, and the two future in-laws had a chance to bond over the weekend while riding four-wheelers on the property.

For now, no wedding is on the horizon. "I'm just so focused on the baby," she reportedly told the magazine. "I'm so excited about the baby I can't think of anything else. When things settle down, [a wedding] will be my first priority."

And while she's not a fan of talking on the phone, Jamie Lynn said the sisters keep in touch via text message and that Britney has promised her a "special" surprise baby gift.

So far, Jamie Lynn said that no one has given her any suggestions on good girl names, but that she wants to pick "something special." As for Aldridge, about whom little is known, Jamie Lynn said she's "known him forever" and that he's "always been there" for her. "Anytime I need anything, it doesn't matter where we are or where we're going, he's the first one to take care of it," she said. "He's asking me every five seconds how I'm doing. He just cares about me and has really been there for me. That's what has made me so relaxed through it all, because he's relaxed about it."

The couple are currently house-hunting, and Aldridge, temporarily employed as a corrosion technician for a local company called Coastal Corrosion, is thinking of going back to school in the area so he can be available to help with the baby. As for Spears, she said she currently has no plans to go back to work, but that "you never know what may happen a year from now. There is the possibility I'll go back, but right now, I just want to be a good mom."