The actors are already parents to 15-month-old twin sons Asher James and Oliver Charles.

By peoplestaff225
Updated May 14, 2014 11:45 AM

Tiffany Rose/Wireimage

They’re thinking pink — and soon!

Marshall and Jamie Anne Allman are expecting their third child — a girl! — in June, her rep confirms to PEOPLE.

The couple are already parents to 15-month-old twin sons, Asher James and Oliver Charles, who were born in January 2013 — 81 days ahead of their due date.

Their early arrival came after a very difficult pregnancy, which included the former The Killing actress being diagnosed with gestational diabetes and spending months on bed rest before a bladder infection led to the premature delivery.

Both boys spent close to three months in the NICU before being discharged.

The True Blood actor, 30, and Jamie Anne were married in Austin, Texas in June 2006.

— Anya Leon