Twilight actor Jackson Rathbone and his girlfriend Sheila Hafsadi are expecting their first child, and the actor-musician can’t wait to be a dad! “One of the greatest things I could expect to be in life is a father,” he reveals to Us Weekly. “I’m very excited!”

The 27-year-old says he’s relying on daddy advice from his father to prepare for the baby. “I have one of the greatest dads in the world,” he gushes. “He’s just been giving me amazing advice.”

So what wisdom has his father shared? “Be prepared for lots of poop!” Jackson jokes.

The 100 Monkeys guitarist is also taking care of his 24-year-old burlesque dancer girlfriend. “I believe everything and anything that she wants is the best thing!” he says. “And yes is always the right answer — that’s what my mom taught me!”

Aww! Jackson’s going to be the best dad, don’t you think? What advice would YOU give Jackson, HollyMoms?

More Jackson Rathbone updates:

1. ‘Twilight’ Actor Jackson Rathbone Is Going To Be A Dad — Congrats
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3. Kristen Stewart Hated Playing A Vampire In ‘Breaking Dawn, Part 2′

Jackson Rathbone’s burlesque dancer girlfriend Sheila Hafsadi is five months pregnant, according to Us Weekly! The couple “is thrilled and excited to be expecting their first child,” his rep says.

Jackson met Sheila while touring with his band 100 Monkeys, and he’s already prepping for baby duty!

A source says he traded in two of his cars for a Lexus Hybrid SUV to have more room for the newcomer. Awww!

Congrats, Jackson and Sheila!

-Anna Moeslein

More ‘Twilight’ updates:

1. Kristen Stewart Expresses Her Love For Jay Leno With Xs & Hearts
2. Robert Pattinson Reveals: Edward Cullen Wouldn’t Approve Of ‘Bel Ami’
3. Robert Pattinson Admits: I Sleep With Tons Of Hot Women