Pregnant Serena Williams poses nearly N'ude for Vanity Fair Magazine

  Serena Williams is following behind Demi Moore, Beyonce and a slew of other stars, and bares all with her baby bump on full display.

The pregnant 35-year-old tennis pro covers the August issue of Vanity Fair, wearing nothing but a skin-toned thong and belly chain for photographer Annie Leibovitz, and opens up about how her fiance, Reddit co-founder Alexis Ohanian, and their baby to be.

The couple first met at a hotel in Rome, Italy, when Ohanian sat at a table nearby Williams at breakfast, which displeased the 35-year-old athlete. She joked with him that there was a rat in an effort to get him to move. “I’m from Brooklyn. I see rats all the time,” Ohanian responded. That’s when Williams asked him to join her party, and the rest is history.

As for how he proposed, Ohanian planned a spontaneous trip to Italy to pop the question, and again Serena wasn’t thrilled with the idea. “I knew it was coming,” she recalls. “I was like, ‘Serena, you’re 35, you’re ready. This is what you want.’” Ohanian proposed at the same table where they had first met at that hotel in Rome.

Now the two are expecting their first child and Williams admits that “it just doesn’t seem real.”

“I don’t know why. Am I having a baby?” she confides. “If you would have told me last year in October or November that I would have a baby, not be pregnant but have a baby, I would have thought you were the biggest liar in the world. This is kind of how I am right now. This is happening sooner than later, and it’s going by so fast.”

She adds, “I don’t know what to do with a baby. I have nothing. . . . I’ve done absolutely nothing for the baby room.”

In May, Williams’ baby bump made its red carpet debut at the Met Gala, and Ohanian was by her side. “She has the biggest heart,” he gushed over his fiancee on Instagram after their big night. “Everyone sees her success as an athlete, but all of that is layered on the size of her heart. She gives 100% of herself to everything she does: as a friend, as a lover, and soon, as a mother.”

Photo Credit: VF