Khloe Kardashian: "Kim Is at Her Weight Goal, I'm Not"

Many were surprised when Kim Kardashian posted a photo of herself and sister Khloe in bikinis on her Twitter -- including Khloe.

"Honestly, I didn't even know Kim had Twittered that photo," Khloe, 25, says on Wednesday's Daily 10 on E!. "I was like, you didn't even ask [if] you could twit-pics a bikini photo of me!"

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Kim, 29, is nothing but happy with how her body appears in the snapshot (taken during the sisters' QuickTrim commercial shoot).

"I really feel like I have reached my fitness goal and now I am toned, fit and at a healthy weight and I just need to keep it up," she wrote on her website Monday.

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Khloe says she's not quite there yet herself. "Kim is at her weight goal," she says. "I'm not."

Blame new husband Lamar Odom: "I've gained a little love weight," she admits. "But I know by this summer I will have my ultimate bikini body. But I'm still happy!"

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Indeed, the newlywed gushes, "it's just so natural for me to be married. I was never somebody who was a serious relationship person. Now I'm all in and it's so easy."

The couple is preparing to move into the nearly $4 million home in Tarzana, California after months of living in a hotel. Right now, she says "we're at a loft," where she's working on prepping homecooked meals for Odom. "Being here is helping me to prepare!"