December 18, 2015 06:45 PM

Jason Merritt/Getty

Tom Arnold is tickled pink: His baby girl is here!

The Sin City Saints star welcomed his second child with wife Ashley on Friday, Dec. 18, his rep confirms to PEOPLE exclusively.

Daughter Quinn Sophie Arnold was born in Los Angeles at 12:39 p.m., weighing 7 lbs., 9 oz. and measuring 22 inches long.

She joins big brother Jax Copeland, 2½.

“Our second miracle has arrived and she is perfect,” the proud parents tell PEOPLE.

After a rough road to parenthood, including visiting fertility specialists and rounds of in-vitro, the couple welcomed their son in 2013.

Courtesy Arnold Family

Courtesy Arnold Family

In June, the actor, 56, revealed the proud parents were expecting another addition — this time a daughter! — to their family.

“Jax is very excited, but also a bit confused with the happy news he will have a little sister this fall,” Arnold wrote, sharing a photo of his firstborn holding an ultrasound.

— Anya Leon with reporting by Sarah Michaud

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