Splash News 1 / 12

Well, this will be one memorable weekend for Kevin Federline! Britney Spears' ex-husband, 35, and his girlfriend Victoria Prince got engaged in Las Vegas and are planning to marry there -- all in the same weekend, a source confirms to Us Weekly.

PHOTOS: Britney and her boys

"She said yes!" a source tells Us. "Kevin told her he was going to Vegas for a job, but he surprised her by proposing and [then plans on] marrying her while they are there."

The insider added, "Victoria really wanted this for a long time so she's gotta be blown away. She's proven herself with him from day one. Victoria is an awesome girl."

The former backup dancer and Prince, 30, a former volleyball pro from Washington State turned special education teacher, have been dating since 2008 and are parents to their 1-year-old daughter, Jordan Kay. Jordan is with them in Vegas, the source confirms.

PHOTOS: Britney's sexiest tour outfits 

Federline also has two sons with Spears -- Jayden James, 6, and Sean Preston, 7. He also shares an 11-year-old daughter, Kori, and 9-year-old son Kaleb, with ex-girlfriend Shar Jackson. (The pair were engaged when he began a relationship with the "Ooh La La" singer in 2004.)

Federline and Spears, 31, married in September 2004 after a few months of dating. The former "X Factor" judge filed for divorce from Federline in Nov. 2006, citing irreconcilable differences.

PHOTOS: Hollywood's friendliest exes

In 2010, the dad of five revealed to Ryan Seacrest that a wedding to Prince was most likely on the horizon. "Would I get married again? Definitely," he explained.


Did Adam Levine break engagement news to model ex via text?

Jelena, Robsten, and more of pop culture's rockiest romances

Britney Spears joins Kevin Federline and his girlfriend at sons' soccer game