LOS ANGELES, California (X17online) - Britney Spears hadn't seen her little sister Jamie Lynn Spears since October of 2007, so when she returned to her hometown of Kentwood, Louisiana for Jamie Lynn's baby shower, it was quite a reunion. Jamie Lynn discussed what it was like to see her sister for the first time in seven months and talked about her pregnancy exclusively with OK! Magazine.

Britney Spears, and her father, Jamie Spears, flew by private jet from Los Angeles on May 2 to Kentwood, and when the two sisters saw one another, says Jamie Lynn, "She just ran up. She obviously couldn’t pick me up. We gave each other a big hug. It was a really good feeling." Jamie Lynn added, "It was wonderful to be able to spend time with her and just be girls again. 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."

Britney, 26, even gave Jamie Lynn, 17, advice on motherhood. Britney told her sister, who is due in June, “There are going to be some long nights, but it is completely worth it.” Britney even approves of Jamie Lynn's boyfriend Casey Aldridge; according to Jamie Lynn, "She loves Casey. She’s met him a bunch of times. They were riding four-wheelers and stuff together. They get along real well." The Spears sisters keep in touch on a regular basis, not by computer or phone calls, but rather, by text messaging. Jamie Lynn says, "I don’t like talking on the phone. That’s not my thing. Britney is a texter too." And finally, what did the elder Spears sibling bring to the baby shower? At the time of the interview, Jamie Lynn was wondering the same thing. "She has a special thing but hasn’t given it to me yet. She won’t tell me what it is, but she said she didn’t want to give it to me that day. I’m really excited to find out what it is."

Jamie Lynn is due to have a baby girl in June, and she also opens up about her pregnancy to the magazine. When asked how much weight she's gained, Jamie Lynn responded, "I don’t know the exact amount. I’m sure it’s up in the 20s [pounds]. 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." Though the teenager suffered from morning sickness during the first trimester of her pregnancy (and as a result didn't gain any weight), she says, "Now, I feel great!" The best part about being pregnant? "It’s when she kicks, when you know she’s there. 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."

However, like most other mothers, Jamie does want to get her body back. "I want to get back to my old weight, but you can’t work out right away. 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 asked about her career, Jamie Lynn says, "Right now, I am so focused on the baby that hasn’t even occurred to me. 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."

CLICK HERE to see all of X17online's stories on Britney Spears

CLICK HERE to see all of X17's Britney Spears videos