Feeling good AND looking good! Amber Rose flaunted her post-baby body on Twitter Monday, March 18, after welcoming her first child, son Sebastian "The Bash" Taylor Thomaz, with fiance Wiz Khalifa.

"Three weeks after giving birth to Sebastian and I feel amazing!" the 29-year-old model captioned a photo of herself. In the sexy shot, Rose proudly shows off her post-baby curves in a low-cut, high-slit red dress.

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Since welcoming baby Bash on Feb. 21, Rose and her 25-year-old rapper fiance have been gushing about their son on Twitter.

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"Sebastian is so cool!" Rose tweeted March 7. "He makes us laugh all day. LOL. He's just 2 weeks old and super silly like me and his dad." Khalifa also shared on Feb. 22, "Bash is so awesome. He makes the coolest faces and hardly cries."

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The new parents celebrated three special anniversaries on March 1. "One year since he proposed, 2 years since I met the love of my life and 1 week since we had our baby boy," Rose announced. "Happy Anniversary, Wizk Halifa. Love you baby!"

This article originally appeared on Usmagazine.com: Amber Rose Debuts Post-Baby Body Three Weeks After Giving Birth