Josh Duhamel is ''beyond'' excited for his unborn son to pee on him.

The 'Scenic Route' star, whose wife Fergie is set to give birth to their first child next month, thinks being a father is going to be very entertaining.

The 40-year-old actor told E! News: ''You know what I'm mostly excited about? And this is going to sound weird. Because it's a little boy and I've always heard that they pee [straight up] gotta make it on the table when you're changing the diaper. They just pee on you. I'm actually excited about that. I want to see it (laughs). I think it's gonna be funny.''

Black Eyed Peas star Fergie, 38, recently gushed about how supportive her husband has been during her pregnancy.

She said: ''He sings and talks to my belly all the time. He's very complimentary. I'm very lucky that he's really good to me.

''He's going to be an amazing father. He's got natural parenting instincts. And he wanted to knock me up on our first date.''