Rose had her son on Feb. 21, and still had him on her mind, as she headed to Babies R Us in Los Angeles with her mother, Shauna.
(View pictures here.)"Happy Birthday Sebastian 'The Bash' Taylor Thomaz!" Wiz Khalifa, Rose’s fiancé and the father of Sebastian, announced on the mini-blog following the birth. "Everyone welcome this perfect young man into the world."
While Rose planned to have an all-natural birth, it is unlikely that happened, considering Wiz Khalifa took a photo while Rose was in labor dressed in a hospital gown.
Though the couple has yet to reveal what Sebastian’s face looks like, Rose often tweets photos of his feet and other body parts.
On Sunday, she tweeted, “Sebastian has on green today celebrating his Irish side & i have on green toe nail polish Erin Go Bragh! :-).”
The former model famously dated rapper Kanye West in 2010, and then accused Kim Kardashian, his current girlfriend, of being a "homewrecker," sending West photos and texts while he was still with Rose.
"She was sending pictures, and I was like, 'Kim, just stop. Don't be that person. I thought at least she'd be woman enough to respond to me. She never responded. It's very important that us women stick together and we don't [expletive] each other over like that," Rose said in an interview with Star magazine.
But after her relationship with West ended, she was able to find true love with Khalifa.
"I want to thank her," Rose said about Kardashian. "Because if she was never a homewrecker, then I never would have met Wiz, and I wouldn't be as happy as I am now."
The couple got engaged in April, and this is their first child.