Kelly Osbourne says that she has "baby fever" following the birth of her brother Jack's first daughter, Pearl.

The 27-year-old E! Fashion Police host became an aunt last month and gushed about the new addition to the family.

In an interview with Anderson Cooper, Kelly revealed that she can't wait to become a mother herself and is completely smitten with the newborn.

"I have to tell you, I never believed in love at first sight," Kelly shared. "And then when I saw how perfect and beautiful this baby was, I lost it."

Kelly added that she thinks she would make a great parent one day because of the example set by her own mother Sharon Osbourne.

"I'd be the best mom ever," Kelly told the talk show host. "I would. I've got great training from my mom."

"I want to be [the cool aunt], but I'm under strict instruction not to spoil her. But I don't think that's going to stick."