Alessandra Ambrosio Welcomes Baby Boy!

By RadarOnline.com Staff

Victoria Secret’s supermodel Alessandra Ambrósio and her fiancé Jamie Mazur welcomed their first son in Florianopolis, Brazil on Monday.

The couple  -- who’ve been dating since 2005 -- already have a daughter,  3∏-year-old Anja Louise.

“Welcome my son, can’t wait to show u around this crazy place,” Jamie Mazur Tweeted Monday.

At this time, there’s no word on the baby’s name.

“Choosing a name is the hardest part! I want something that works well in both Portuguese and English,” the stunning Ambrosio said in April. “It can’t be too American or my grandmother won’t be able to pronounce it!”