Jessica Simpson sharing pregnancy knowledge with expectant best pal

Jessica Simpson has been giving her best friend Cacee Cobb words of encouragement and advice as the close pals endure the highs and lows of pregnancy together.

The singer/actress, who recently confirmed reports she's pregnant with her second child, is already familiar with the problems expectant mothers face after becoming a first-time parent to daughter Maxwell last year (12), and now she is sharing her wisdom with Cobb, who is due to give birth for the first time this summer (13).

Cobb's actor husband, Scrubs star Donald Faison, reveals the women's bond has grown even stronger as a result of their shared experiences.

He tells People.com, "Imagine if you and your best friend were pregnant at the same time - Cacee's loving it. They hang out all the time anyway, but now they hang out and talk baby stuff, look at baby stuff online, and go shopping for baby stuff together.

"You think when you get pregnant, it's going to be glitz and glamour and everything's going to be wonderful, but they don't tell you about the morning sickness, they don't tell you about the constipation and being uncomfortable."

And Faison is doing all he can to make sure Cobb is as comfortable as possible as they prepare for parenthood: "I do my best not to annoy my wife, I just get out of her way. But then I do my best to show her love also. I've become a good foot massager!"