Wiz Khalifa and Amber Rose
Sara De Boer/Startraks
07/08/2013 at 06:00 PM EDT
If a tattoo and a son didn't make it official, this just did.
Amber Rose and Wiz Khalifa have long expressed their love for one another – they have a son together
and Rose has a tattoo
of Khalifa on her arm – but now the pair are officially married, his rep confirms to PEOPLE. Rose, 29, and Khalifa, 25, both announced their marriage via Twitter on Monday.
The model kept her statement simple: "Yay me and my baby are officially married!!!" Rose Tweeted
Khalifa also acknowledged the marriage, but said that they will have a ceremony to celebrate their nuptials this fall. "Me and Amber got married today. Weddings this fall. Thought I'd let yall know," the rapper Tweeted.
The couple's son, Sebastian Taylor Thomaz, was born Feb. 21