Christina Aguilera is surprised that she's still sore after giving birth.

Childbirth can be painful? Really?
Star Pulse:
Pop star Christina Aguilera is reveling in her new role as a mom, but is still suffering from the pain of childbirth. The Beautiful singer and her husband Jordan Bratman welcomed little Max Liron Bratman into the world at 10:05pm on Saturday after doctors at Los Angeles' Cedars-Sinai Medical Center delivered the baby via cesarean section.
But Aguilera is reportedly still "really sore" six days after the birth.
A source tells E! News, "It (childbirth) was more painful than she thought."