Model and mom-to-be Amber Rose gets caught in the rain in Los Angeles, CA while her fiance rapper Wiz Khalifa is busy recording on October 11, 2012

*Amber Rose has coyly revealed the sex of her impending newborn with fiancée Wiz Khalifa.

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The announcement came embedded in a tweet thanking one of her friends for purchasing an all in onesie featuring a picture of Guns N’ Roses guitarist Slash.

”My friend Maria bought our Lil Boy this Slash onesie….. Oops did I say Lil Boy??? ;-),” she wrote.

Rose, 29, currently in her second trimester, spoke about her planned birthing method and wedding plans.

“I’ve decided that I’m going to have an all-natural water birth. No medicine,” she said. “I want those bragging rights! The next time Wiz has a stomach ache or anything, I’ll say, ‘I popped out a baby all-natural.’ ”

Wiz added: ”It makes more sense for the baby to be in the wedding than for her to be pregnant. Some people, they rush and do it, but it works both ways.”