Blake Lively's best friend is envious of Ryan Reynolds.

Amber Tamblyn, who has been close pals with the 27-year-old pregnant actress since they co-starred together in the 'Sisterhood of the Travelling Pants' in 2005, thinks she is going to be an ''incredible'' mother and her husband is lucky to have her.

She quipped: ''I would love to have a child with Blake Lively. Absolutely. I mean I'm in line. I'll be the next one, I would be pummelling Ryan in the face to get [him] out of the way. So I can get to her uterus.''

The 31-year-old actress has no doubt Ryan and Blake will be great parents.

She told UsMagazine.com at the Save a Child's Heart event in Los Angeles: ''They're going to be incredible. They're going to be really, really, really incredible. Blake's going to be more like the dad, and Ryan's going to be more like the mom. And that just means very emotional, and he's growing his hair out.''

Amber, 31, and her husband, David Cross, frequently enjoy double dates with Blake and Ryan, 38, and reunions with their other former co-stars Alexis Bledel, 33, and America Ferrera, 30.

Asked if they meet up regularly, she said: ''Too often! I just got off the phone with Blake actually. We see each other all the time, all the time, more than I think you guys even know. To like an extreme amount, which I'm always very, very happy with.''