True Blood’s Sam Trammell Reveals Twins’ Gender

 Michael Kovac/FilmMagic

It's all about the boys in True Blood star Sam Trammell's household.

The actor and his girlfriend of eight years, Missy Yager, confirmed to that they are expecting twin boys during Kiehl's Earth Day Campaign in Santa Monica, Calif. on Thursday.

"It's very nerve-racking, but we're excited," Trammell, 40, told Us of becoming a first-time father. "I'm most excited about just the lifestyle change, believe it or not, even though it's going to take away all our freedom."

Added Yager, "It's going to be very different."

Fortunately, the couple still has plenty of time to prepare before Yager gives birth later this year — starting with building a nursery.

"We're not prepared," Trammell laughed.

"We started on a kitchen," Yager shrugged. "Go figure."

In the meantime, Trammell has been busy shooting scenes for True Blood's highly-anticipated fourth season, premiering June 26 on HBO.

"We're midway through the season, so it's going to be good," he told Us. "They're keeping our lips sealed, but it's going to be an awesome year."

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