Pete Wentz 'Reading All' the Parenting Books

Pete Wentz is clearly getting ready for fatherhood.

"I'm reading all the books," said Wentz -- whose wife, Ashlee Simpson, is pregnant with their first child. "The best one I've read so far is The Expectant Father.

"I'm talking to my dad a lot. I'm talking to Ashlee's dad a lot. We hang out with other people who have kids. You see the world in a different way. It's exciting."

Fall Out Boy rocker Wentz -- who married Simpson in May this year -- says all his pals are "excited" for him and Ashlee.

He added to OK! magazine, "My friends are all really excited for me.

"[Bandmate] Andy [Hurley] was the first to respond to anything. Like, I sent out the email for my wedding and Andy responded seven minutes later like 'I'll be there and these are the sizes of my clothes.'"