Adriana Lima gives birth to baby girl Sienna
"Marko and I are overjoyed to welcome Sienna into our family and Valentina is looking forward to becoming a big sister!" the supermodel writes.
The couple's older daughter, 2½-year-old Valentina, has been looking forward to her little sister's arrival since Lima announced the news.
"The entire family is very excited, especially Valentina. She keeps blowing kisses to my belly and saying, 'Kisses for the baby,'" Lima tells People back in March.
Sienna was born at 1 p.m. and weighed approximately 7 pounds, according to Us Weekly.