Kardashian, who recently slammed a Twitter follower who called her "fat," has been spotted in Los Angeles going to the gym and hanging out with her family.
Kim, who's doing well since filing for divorce from NBA star Kris Humphries after just 72 days of marriage, jokes that her sister Khloe wants her to be a surrogate mother for her children.
"Khloe joked with me and said, 'Will you be my surrogate?' " Kim, 31 told Allure. "I said, 'I think I have a couple more years when I just want my body to myself. At 35, I promise I'll consider it.'"
Kim, who once dreamed of being married and having children by age 30, recently lamented that she may never have kids.

"At first I was like, I want 6 kids," Kim, 31, told Glamour. "Then I went down to 4, then I was down to 3. And now I'm like, maybe I won't have any.

"Maybe I'll just be a good aunt. At this moment in my life, I feel like maybe I'm not supposed to have kids and all that."